Tetrahedron Letters

Number 1

The Cyclo-Addition of 1,3-Butadienes to Aromatic Hydrocarbons to Form Indans

The Chemistry of 7-Substituted Norbornenes: 7-Ketonorbornene

Studies in Mass Spectrometry—III. Triterpenoids : Structure Assignment to Some Friedelane Derivatives

Photochemical Rearrangements of Cross-Conjugated Cyclohexadienones. Formation of Spiro [4.5]dec-3-en-2-ones

Stereochemistry of Acetolysis of 2-Octyl p-Toluenesulfonate

Acidic Deacetylation of Sugar Acetates

Application of Mass Spectrometry to Structure Problems. The Structure of Quebrachidine

Erratum: On the Structure of Trilobine and Isotrilobine

Number 2

Boat-Chair Equilibrium in a 4-Piperidinol

The Configuration of the Carbomethoxy Group in Vobasine, Tabernaemontanine and Dregamine

Charge-Transfer Spectra of Conjugated Hydrocarbons, Their Heteroanalogues and Derivatives

The Cardiac Glycosides of Calotropis procera

The Structure of Asperuloside

Die Fragmentierung Eines γ-Oximino-Ketons

The Photosensitized Amidation of Aromatic Hydrocarbons

The Conformation of Six-Membered Rings Involving a Planar Group

Alkaloids of the Australian Rutaceae: Halfordia Scleroxyla—I. The Structure of N-Methylhalfordinium Chloride

Pyrylium Salts Formed by Diacylation of Alkenes—XII. Diacylation of 2-Methylpropenylbenzene

The Dipyrido [1,2-e: 2′,1′-e] Imidazolium Cation, a New Aromatic Ring System

Flavonoid Pigments in the Marbled White Butterfly (Melanargia galathea seitz)

Phenylselen-Cyclopropane aus Phenylselen-Carben und Olefinen

Reactions of Enamines—II: A Novel Conversion of an Enaminoketone to a Chloroiminium Chloride

Die Bindung der Kohlenhydratkomponente in Proteinen

Number 3

Synthesis of 1,4-Dimethyl-6,7-(4′-Methylfurano-2′,3′)-Azulene (Linderazulene)

The Structure of Isopilocereine

Thermal Rearrangement of Xanthates to Dithiolcarbonates—II. Mechanism Study

Natural Products from Achillea lanulosa

Isolation and Properties of 1,1,2,3,3a,7a-Hexachloro-3a,4,7,7a-Tetrahydro-4,7-Methanoindene

Schlüsselbruchstücke in den Massenspektren von Alkaloiden—I

Schlüsselbruchstücke in den Massenspektren von Alkaloiden—II

Synthesis of Pratensein, 5,7,3′-Trihydroxy-4′-Methoxyisoflavone

Benz-Azpentalen-Salze

Mitraphylline and the Possible Existence of Its Optical Antipode

Number 4

Concerning the Reaction of Sulfonium Methylides with Conjugated Carbonyl Compounds

Studies in Mass Spectrometry—IV. Triterpenoids : Structure Assignment to Friedelan-Y-One (Y-al) and Derivatives

An Alternative Calculation and Reconsideration of Rates of Bromine Addition to 5,6-Unsaturated Steroids

Bridged Polycyclic Compounds—XX. The Cis-Stereochemistry of the Addition of Methanol and Water to Endo-Trimethylenenorbornene

Rearrangement During Reduction of Cis- and Trans-2-Phenylcinnamic Acids with Lithium Aluminium Hydride

Racemic Progesterone

The Stereochemistry of Rings A and B in 6-Substituted-Δ4-3-Ketosteroids. A Study of H Allylic Spin-Spin Coupling in Rigid Systems

The Diterpene Alkaloids: A Partial Synthesis of Atisine

A Novel Process for the Epimerization of Glucosepentaacetate Involving Imidazole Catalyzed Acyl Transfer

Components of the Heartwood of Dalbergia latifolia Roxb

Aromatic Oxygenation Patterns of Some Trioxylaryl Amaryllidaceae Alkaloids Belonging to the Hemi-Acetal and Lactone Group

The Nature of Sesquiterpenic Hydrocarbon Calarene and Structure of β-Gurjunene

Charge Densities, Chemical Reactivity and Basicity of Purine

The Acid-Catalyzed Proton Exchange of Cyclopropane

A Correlation of Ease of Pyrolytic Cis Eliminations with Structure

Longicyclene, the First Teracyclic Sesquiterpene

Über eine Zwischenprodukt der Emetin-Synthese

Über eine Bequeme Synthese der Octahydro-Indo-Chinolizine

The Chemistry of Derivatives of 2-Benzal-1-Tetralone—IV. Elimination-Rearrangement Reaction of 2-Bromo-2-Benzyl-1-tetralone

Zur Struktur der Cobamid-Coenzyme

The Construction of the C/D Ring System Present in the Diterpenoid Alkaloids Atisine and Garryfoline

H Spin-Spin Coupling Across One Double and Four Single Bonds

Number 5

The Structure of Munetone

Tetrahydrofranklinone

The Structure of Lunarine

A New ortho-Effect in the Homolytic Arylation of Pyridine

Rapid Allylic Rearrangements in 2-Halo-3-Hydroxy-2,4-Dimethylcyclobutenones

o-Quinodimethane as an Intermediate in the Isomerization of Cis-4-Octene-1,7-Diyne

Cyanomaclurin

Reaction of Silicon Tetrachloride with Tertiary Butyl Acetate. A Novel Synthesis of Silicon Tetraacetate

A New Carbon-Carbon Condensation Via Cyclic Oxyphosphoranes. Tartaric Acids From α-Ketoesters

Über Tomatid-5-En-3β-O1 aus Solarium dulcamara L. und Dessen Synthese

Phlebiarubrone, a Basidiomycete Pigment Related to Polyporic Acid

σ-Carbon Participation in the Solvolysis of Organomercurials

Number 6

Fluorine-19 Resonance in Monofluoro Aromatic Compounds

On the Structure of Amidomycin and Valinomycin

Reactivity of Hydroxy and Alkoxy Radicals in Presence of Olefins and Oxidation-Reduction Systems. Introduction of Azido, Chloro and Alcyloxy Groups in Allylic Position and Azido-Chlorination of Olefins

The Synthesis of a Protected Heptapeptide Related to Evolidine: N-Benzyloxycarbonyl-L-Leucyl-L-Prolyl-L-Valyl-L-Asparaginyl-L-Leucyl-Lseryl-L-Phenylalanine Benzyl Ester

An Analogue of the Photo-Fries Rearrangement; The Photolysis of Vinyl Benzoate

Photolysis of Vinyl Benzoates

Photochemische Umsetzungen I. Triterpene VI. Photochemische Reaktionen mit 2-Diazo-Allo-Betulon

The Reaction Between Nitrosobenzenes and Alkenes

The Mechanism of the Reaction of Ferrocene with Free-Radical Reagents

Syntheses of Cadinanes. Synthetic Correlation of Absolute Configuration Between the Cadinane Sesquiterpenes and Monoterpenes of the p-Menthane Series

The Stereochemistry of Ethyleneimines Fused to Six-Membered Rings

The Structure of Tecomanine

Synthesis of the Thienotropylium Cation

Thermal Isomerization of Dimethyl Maleate

Number 7

Complexes Between Grignard Reagents and Ketones

Synthesis of a Degradation Product of Cephalosporin C and Related Sulfur-Containing α-Tetronic Acids

Derivatives of α-Tetronic Acid

The Metalation of Alkanes by Alkylpotassium Compounds

Denomination of Bromomethyltriphenylphosphonium Bromide with Triphenylphosphine in Alcohols

Cyclol Formation in Peptide Systems—III. Rearrangement of N-(β-Hydroxypropionyl)-Piperidone Into a 10-Membered Cyclodepsipeptide

Mechanisms of Free-Radical Aromatic Substitution

Partial Structure of the Antibiotic Isoquinocycline B

The Constitution of Morellin

Number 8

Conformation and Anisotropy of Chemical Bonds in Cyclic Ethers Investigated by N.M.R. Spectroscopy

The Structure of Gypsosidetriterpenic Saponin from Gypsophila pacifica Kom.

Convenient Syntheses of Pure Allenic and Acetylenic Bromides

Disproportionation of Thiachromens to Thiachromans and Thianaphthalenium Salts Involving Hydride Transfer

N.M.R. of Thiachromans and Related Compounds

Structure of β-Bergamotene

On the Constitution of Jalaric Acid

The Synthesis of D-Chalcose

A Novel Oxidation Reaction. A Correction

The Relative Configurations of the Diastereomers of the DL-3-Amino-2-Methylbutyric Acid; A Convenient Method for Their Preparation via the Hofmann Rearrangement

Reaction of Some Cyclic Phosphorus Chlorides with Dimethyl Sulfoxide

The Synthesis of Orotidine

Number 9

Neighbouring Group Participation by Oximate Anion

The Biosynthesis of Nicotinic Acid by Mycobacterium tuberculosis

A Novel Fragmentation Reaction

A Novel Ring Contraction Leading to the Veratramine Nucleus

On the C-9 Configuration of Veratramine and Jervine

Recoil Carbon-14 Labeling of Naphthalene, Phenanthrene and Anthracene Under Neutron Irradiation

Biogeneseähnliche Alkaloidsynthesen Durch Oxydative Kondensation—IV. Isopilocerein- und Pilocerein-Methojodid

Synthesis of Isoquinoline Alkaloids—III. Pilocereine and "Isopilocereine"

The Effect of Bond Angle on Hybridization

Rearrangement of Benzylsulphonyl Chloride with Tertiary Amines : A Route to a Little-Known Class of Sulphur Compounds

Steroids Containing Ring A Aromatic—IV. Mechanism of the Dienone-Phenol Rearrangement

The Photochemistry of Some Charge-Transfer Complexes of Cyclohexene

Number 10

Verhalten von Norbornadien und Seinen 7-Alkoxy-Derivaten Gegenüber Lithiumorganischen Agenzien

Verhalten von Norbornadien und 7-t-Butoxy-Norbornadien Gegenüber Alkalimetallen

Studies in the Biochemistry of Micro-Organisms—IV. Synthesis of O, O-Dimethylcurvulinic Acid

Über Triterpene—X. Die Struktur der Bredemolsäure und die Partialsynthese Ihres Methylesters aus Oleanolsäuremethylester

Model Compounds Related to "Viton A"

An N.M.R. Study of the Stereochemistry of Some Steroidal 4,5-Epoxy Derivatives

The Lithium Aluminum Hydride-Aluminum Chloride Reduction of Oximes

The Rearrangement of Aromatic Aldoximes on Reduction with Lithium Aluminum Deuteride and Lithium Aluminum Hydride

The Benzidine Rearrangement—VI. 4,4′-Di-t-Butyl-Hydrazobenzene

8 β-Hydroxylation of Reichstein's Substances by Microorganism

Homogeneous Catalysis in the Hydration of Acetylenes

Chemisches und Spektroskopisches Verhalten von Quartären Pyridinaldoximen

The Relative Configurations Between Virosecurinine, Securinine and Allosecurinine

On the "Trans Enol" of Ethyl α-Sec-Butylacetoacetate

Number 11

Über das Norcaradienund das Vinyloge Bicyclo [6.1.0] Nona-2.4.6-Trien-System

Reactivity of Phenyl Radicals Toward Aromatic Solvents. On "Cage" Phenylation by Phenylazotriphenylmethane

Concurrent Operation of Unimolecular and Bimolecular Processes in Borderline Nucleophilic Substitution Reactions. The Isotopic Exchange Between Benzhydryl Thiocyanates and NaSCN in Acetonitrile

Chromose A

On the Stereochemistry of Occidentalol

Optically Active Compounds : An Exception to the Usual Definition of Asymmetric Carbon Atom

Reactions of the α-Methoxy- and α,α-Dimethoxybenzyl Radicals

The Involvement of Azocarbonium Ions in Some Reactions of Hydrazidic Halides

The Thermal Rearrangement of bis-(1-Phenyl-3,5-Di-Tert-Butyl-2,5-Cyclohexadien-4-One) Peroxide. Evidence for Homolytic Carbon-Oxygen Fission in a Symmetrical Peroxide

Endgültige Konstitutionsermittlung des Centaureins, Eines Flavonglucosids aus Centaurea jacea L.

Carbanion Stabilities—Exchange Reactions Between Organomercury and Organomagnesium Compounds

The Nature of Sesquiterpenic Hydrocarbon Calarene and Structure of β-Gurjunene

Racemic Progesterone

Papers to be Published in Future Issues of Tetrahedron

Number 12

Thermal Decomposition of Phenylazotriphenylmethane

Cis- and Trans-4,6-di-t-Butylcyclohexane-1,3-Dione

Oxidation of Steroidal Ketones—I. Selenium Dioxide Catalyzed Hydrogen Peroxide Oxidation of Ring A Saturated 3-Ketones

Macluraxanthone and Two Accompanying Pigments from the Root Bark of the Osage Orange

Über Lichtreaktionen—XV. Photolyse von Thioäthern

A New Chemiluminescent System

Structure of Grignard Reagents and Organolithium Compounds

Cyclisierung Aromatischer Dialdehyde mit Nitromethan

Rearrangement of N-Cyanoanthranilic Acids to 1,2-Dihydro-2-Imino-3,1,4H-Benzoxazin-4-Ones and 2,4(1H,3H)-Quinazolinediones. Reactions of 1,2-Dihydro-2-Imino-3,1,4H-Benzoxazin-4-One with Hydroxylic Reagents

Addition Reaction of Nitrile Oxides on Aromatic Nitrosoderivatives. A Novel Synthesis of the Benzimidazole Ring

Light-Induced Interconversion of Cis and Trans 2,3-Dimethylspiro[Cyclopropane-1,9′-Fluorene]

On Genuine Sapogenin of Ginseng

Number 13

Studies in Mass Spectrometry—V. Sporidesmin and Sporidesmin B

Studies in Mass Spectrometry—VI. Stereochemistry and Elimination Reactions of Hydroxy and Acetoxy Compounds

Inductive and Mesomeric Effects in Benzene Derivatives

Photosensibilisierte Cyclodimerisierung von Norbornen

The A-Values of the Amino and Dimethylamino Groups

The Confonnational Equilibrium of the Amino Group

Chemistry of Azides—I. Reaction with Olefins

Chemistry of Azides—II. Reaction with Triphenylphosphine

The Hydrolysis of Amides in Dilute Acid

Fragmentation and Hydride Elimination Reactions of Alkylpotassium Compounds

Absolute Konfiguration von Hydrastin und Ophiocarpin

Equilibration Studies. A 2-Pyrone and a 4-Pyrone

Number 14

Stereospecific Total Synthesis of Rac. 5α-pregnan-3β-ol-20-One

Stereospecific Total Synthesis of Racemic Latifoline and Conessine

The Photochemical Rearrangement of N-Acylanilines

The Structure of Globicin

The Role of Nickel Catalyst in the Oxidation of Diacetone-1-Sorbose by Sodium Hypochlorite

The Structure and Total Synthesis of Enniatin B

An Anomalous Hunsdiecker Reaction of 3,3-Diphenylpropionic Acid

The Structure of Vincaminine and Vincinine

L.C.A.O.-M.O. Calculations on Pyrene Benzologues

The Acid-Catalysed Self-Condenstation of 7,4′-Dihydroxyflavan

The Synthesis of Euparin and Dehydrotremetone

Intramolecular Catalysis in Glucoside Hydrolysis

Some Stereochemical Implications of a Bi-Functional Wittig Reaction

Roburic Acid, a New Triterpene 3,4-Seco-Acid

Racemisation During Peptide Synthetic Work—I. Effect of Substituent Linked to the Beta-Carbon on Base-Catalysed Racemisation of N-Carbobenzoxy Amino-Acid Active Derivatives

The Structure of Stipulatine

Erratum: The Oxidation of Cyclic Olefines and Unsaturated Terpenes with Thallium III Salts

Number 15

Abbau von N-Nitroso-Solasodin zu 3β-Acetoxypregna-5·16-Dien-20-on

Synthese des Steroidalkaloids Demissidin aus 3β-Acetoxypregn-5-en-20-on; Aufbau des Solanidan-Gerüstes Durch Hofmann-Löffler-Freytag-Cyclisierung

Acetolysis of 2-(endo-5-Norbornen-2-yl) Ethyl p-Bromobenzenesulfonate

The Reaction of Diazomethane with Double Bonds—III. A Stepwise and Improved Buchner-Curtius-Schlotterbeck Reaction

Steroids—I. Introduction of the Cortical Side Chain Using Phosphonate Carbanions

Phosphororganische Verbindungen—XXXVII. Zur Frage der Konfigurationserhaltung bei der Kathodischen Spaltung Quartärer Phosphoniumsalze zu Tertiären Phosphinen und bei der Quartärisierungtertiärer Phosphine

Über die Protonierung α.β-Ungesättigter β-Amino-Carbonyl-Verbindungen

Electrolytic Reductive Coupling of Activated Olefins

Wittig Reactions—I. Preparation of 2,3-Dihydro-1-Benzoxepin and Novel Rearrangement to 2-Methyl-3-Chromene

The Chemistry of O,N-Diarylhydroxylamines—I

The Structure of (-)-Olivil

EPR-Untersuchungen an Substituierten Thianthrenen

Ustilago Melanin, a Naturally Occurring Catechol Melanin

The Stereochemistry of Vincamine

Number 16

A Transannular Homolytic Hydrogen Shift

The Biogenetic-Type Synthesis of Emetine

Biogenetic-Type Synthesis in the Oxindole Alkaloid Series

Sind die Benz-Ine Verschiedener Provenienz Identisch?

Mutarotation of a D-Glucurone Derivative

The Tautomerie Structure of Deoxycytidine

Über die Struktur des Monotropeins

Stabiltät von Schutzgruppen Für Nucleoside und Nucleotide

On the Base-Catalyzed Cyclization of 2-Alkyl-2-p-Toluenesulfonoxymethylcyclohexanones

Homologisierung von 5-Ringaromaten mit Diazomethan

Novel Six-Ring Compounds via the Reaction of Ketene Diethylacetal with Methanesulfonyl Chloride

The Reactivities of 2- and 4-Chloroquinolines with Methoxide, Arylsulfide and Phenoxide Ions in Methanol

Reaction of Olefin-Palladium Chloride Complex with Carbon Monoxide

A New Synthesis of Hypoglycin A

The Chemical Evidence for Triplet State of Biphenylenemethylene

Addendum : The Stereochemistry of Rings A and B in 6-Substituted-Δ4-3-Ketosteroids. A Study of H Allylie Spin-Spin Coupling in Rigid Systems

Number 17

A Radical-Cation Initiated Polymerization of N-Vinylcarbazole

Hexose Sulphites and Arsenites: Their Synthesis and Hydrolysis

A Non-Conjugated 1,3-Diene

Arylschwefelradikale, Benzylschwefelradikal und Phenylselenradikal

The Stereochemistry of Atisine. A Chemical Correlation of Atisine and the Resin Acids

Racemisation During Peptide Synthetic Work—II. Base-Catalysed Racemisation of Active Derivatives of Phthaloyl Amino-Acids

Zur Konstitution des Linalooloxyds

A Novel Rearrangement Catalyzed by a Grignard Reagent

On the Reaction of Cyclopentadienylsodium and Epichlorohydrin

The Mannich Reaction: Improved Conditions and Application to 20-Ketosteroids

The Structure of Arborescin

Solvent Effects in the Oxidation of Thiols—IV. Base-Catalyzed Oxidation of Thiols and Disulfides to Sulfonic Acids

Number 18

π-Cyclopentadienyl-π-Cycloheptatrienyl Derivatives of Chromium and Molybdenum

Conversion of Indones to Quinoline and Isoquinoline Derivatives—III. Schmidt Reaction with 2,3-Diphenylindone and Similar Compounds

Neochlorogenic Acid and "Band 510" Structure

The Synthesis of Coumestrol from a Flavylium Salt

Concerning the Structural Assignment of the Second and Third Acidity Constants of the Tetracycline Antibiotics

Effect of Symmetry on C19 N.M.R. Shifts in Steroids

New Syntheses of Thiapyrylium and 1-Thianaphtaleniurn Cations

The Constitutents of the Volatile Oil from the Wood of Torreya nucifera

Mecanisme de la Transposition de Favorski de la Bromo-2 Cyclobutanone

Tetrachlorocyclopropene and Hexachlorocyclopropane from Pentachlorocyclopropane

On the Structure of the Indole Grignard Reagent

Cation Radicals of Dibenzo-p-Dioxin and Related Compounds

On the Mechanism of Carboxyl Condensations by Carbodiimides

Reactions of Radicals. A Comparison of Peroxides and Disulfides

Methylenbrücken bei Synthetischen Oligo- und Polysacchariden

Number 19

Thia-Aromaten—IX. Dithiafulvalene

Cyclische Gekreuzt-Konjugierte Bindungssysteme—III. Einfach Substituierte Sesquifulvalene

Synthese von Tetracyan-m-Xylol, Pentacyantoluol Hexacyanbenzol

The Conformatons of the Cis and Trans-1, 2-Cyclohexanediols and Certain of Their Derivatives

The Duplex Basicity of Arylamines and the Benzidine Rearrangement

An Intramolecular Diels-Alderr Eaction. A Simple Synthesis of γ-Apopicropodophyllin

Investigations Into the Conformation of Non-Aromatic Ring Compounds—XII. Cyclohexanedione 1,4 and Related Compounds

10α-Substituted Steroids

The Structure of Kryptocapsin

A Novel Benzenoid Steroid

Über die Thermische Zersetzung Einiger Addukte des Acetylendicarbonsäuredimethylesters

Zur Struktur des Tecols und Dehydrotectols in Teak (Tectona grandis L.f.)

Number 20

On the Acetolysis of exo- and endo-bicyclo[2.1.1]-Hexyl-5 Tosylates

A Direct Synthesis of 4-Aminoquinolines

Structure de Tadiantone un Nor-Triterpene Naturel

Spin-Spin Coupling Between Benzylic and Ring Protons

3-Thietanone 1,1-Dioxide

Investigations Into the Conformations of Non-Aromatic Ring Compounds—V. The N.M.R. Spectra of Dihalogenocyclohexanes

Identification of Intermediates in Solvolyses of 2-Octyl Sulfonates

The Directive Influence of Substituents on Anomalous Ozonolysis. A Hammett Type Relationship

Synthese des Protoemetins. Eine Neue Totalsynthese des Emetins

Essai de Correlation Reactivite-Structure Relative aux Vitesses D'addition du Brome Sur Les Olefines Aliphatiques

Generation of Aromatic Radical-Anions by Photoreduction and Electron Transfer Processes

An Approach to the Total Synthesis of the Diterpenoid Alkaloids

Errata: On the "Trans-Mol" of Ethyl α-Sec-Butylacetoacetate

The Structure of Isopilocereine

Number 21

Fluorination of Acetylated Glycals

Selective Poisoning of Palladium-Catalysed Hydrogen-Exchange Reactions

Cyclol Formation in Peptide Systems—IV. Hydroxy Acid Incorporation Into Peptides

The Course of the Reaction of Styrene and Nitrosobenzene: Formation 2,3,5-Triphenyltetrahydro-1,2,5-Oxidiazole-N-Oxides as Unstable Intermediates

The Reactions of Nitrosobenzene with Diethyl Methylenemalonate and 1,1 -Diphenylethylene

Rotary Dispersion Studies—III. The Cinchona Alkaloids

Stereochimie de la Trimethyl-2,2,3(S)-Cyclobutanone et de ses Derives Bromes

The Mechanism of Autoxidations in Alkaline Media

Studies on the Cyclobutadienyl Dianion

Studies in Claisen Rearrangement—I. 2-Butyn-1,4-Diyl Bis-(Aryl Ethers)

The Structure of α-Bromoisotutinone

A Novel Rearrangement: The Ring Opening of a Cyclic Azo Compound to a Diazoalkane

Homolytic Methoxylation of Stilbenes by Anodic Oxidation of Methanol

Synthesis of Tachysterol3

Reaktionen von Nitrosaminen mit Elektrophilen—I. Die Alkylierung von Nitrosaminen

Number 22

Darstellung und Konformation von A-Homo-Steroiden

Reactivity of Some Steroidal Tertiary Amines and Their Derivatives

Organic Syntheses by Means of Noble Metal Compounds—II. Syntheses of Saturated Carboxylic Esters from Olefins

Azomethin-Ylide und Ihre 1.3-Dipolaren Cycloadditionen

A Fern Constituent, Fernene. A Triterpenoid Hydrocarbon of a New Type

Davallic Acid, a Triterpene with a Novel Skeleton

Anzeichen Für Intermediäres Auftreten von 4.5-Dehydro-1-Methyl-2-Phenyl-Pyridaz-Dion-(3.6)

Oligomers of Aliene—I. On Lebedev's β-Tetramer

Steroids—II. Bis-Homosteroids via Enamines

Über Optisch Aktive Kohlenwasserstoffe der Ferrocenreihe

Racemisation During Peptide Synthetic Work—III. Partial Recemisation During Preparation of Activated Cyano-Methyl Esters of N-Protected Amino Acids

Conformation of Ring A in Some 2β-Hydroxy-And 2β-Acetoxy-Δ4-3-Ketosteroids

Energy Relations Between Epimeric Transition States for Some Reactions Involving Changes Between 3- and 4-Co-Ordinate Ring Nitrogen and Carbon Atoms

The N.M.R. Spectrum of Purine

Homologisierung von Aromaten mit Diazomethan und Kupfersalzen

The Stereochemistry of Ethyleneimines Fused to Six-Membered Rings

Number 23

Mevalonic Acid and Delpheline Biosynthesis

The Thermal Decomposition of Diazonium Salts: Evidence for the Formation of Radical Intermediates

On the Mechanism of the Pschorr Cyclization

Conformation and Properties of Δ5(10)-Steriods

Solvent Effect on the Quantum Yield for Photochemical Cleavage of Diazoketones

P.M.R. Spectrum of 2-Hydroxyethyl Mercury(II) Hydroxide

Electrophilic Catalysis in Nitro-Activated Aromatic Nucleophilic Substitution of Fluorine by Piperidine in Benzene

Über Cyclische Phenylgermanium-Verbindungen [(C6H5)2Ge]n

Über die Einwirkung von Tertiären Phosphinen auf α-Halogensulfone

New Syntheses of Estrone, D,1-8-Isooestrone and D,1-19-Norestosterone

Ormosia Alkaloids—I. Structure of Ormojanine and Ormosanine

Slow Exponential Decrease of Aliphatic Inductive Effects with Distance in Addition of Trifluoroacetic Acid to Alkenes Having Remote Substituents

Zur Frage de Konfigurationserhaltung bei der Kathodischen Spaltung Quartärer Arsoniumsalze Zu Tertiären Arsinen und bei der Quartärisierung Tertiärer Arsine

Effet de Solvant Sur Les Vibrations de Cisaillement (δ(CH2) des Methylenes

A Route to 8-Azaestrone

Number 24

The Irradiation of Aryl Aldoximes

Rearrangement, Coupling and Carboxylation of the Allylic Group on Nickel Complexes

The Syntheses of Some Benzobicyclo(2.2.2) Octene Derivatives, Including Benzobicyclo(2.2.2)Octatriene

Polyacetylenverbindungen—L. Zuordnung Isomerer Enoläther Durch NMR-Spektroskopie

The Dimeric Structure of [C4H4AgC1O4]n : A Reinvestigation of the Nuclear Magnetic Resonance Spectrum

Piptoside

Acetyl-α-Gambogic Acid

Synthesis of a Demethyltetracycline Analog

A New Synthesis of 1,2,4,6-Tetrazepines

The Structure of Aristolactone

The Synthesis of Partially Reduced Indolo and Benzoquinolizines via 1,4-Dihydropyridine Intermediates

Constituants de la Racine de Bryonia Dioica Jacq. Structure de la Bryogénine

Bildung Ungesättigter Carbonsäuren Durch Lichtinduzierte Autoxydation Nichtkonjugierter Ketone

Number 25

Die Alkalische Spaltung von N-p-Toluolsulfonylpyrazolinen

Photolyse von Pyrazoleninen

On the Mechanism of the Dienone-Phenol Rearrangement of a 2-Methyl-1,4-Dien-3-One

Thietene 1,1-Dioxides via Hofmann Elimination

Synthese des 2.4.6-Trioxa-Adamantan-Ringsystems

The C10H17 Side Chain in Mycelianamide. The Stereochemistry of Bergamottin and Umbelliprenin

1,3-Dipolar Cycloaddition Reaction with 1-Methylbenzimidazole 3-Oxide

Mechanisms of SNi Reactions. The Decomposition of Aralkyl Thiocarbonates

Measurement of the Rate of Rearrangement of Bullvalene

Magnetic Shielding of Alpha Protons by the Carbonyl Group in Cyclohexanones

The Structure of Speciofoline and "Stipulatine" (Rotundifoline)

Determination de la Structure 3-oxo-3,3a-Dihydrogaiazulene, Produit de la Reaction de Dakin Sur Le 3-Formylgaiazulene

Spectres Électroniques des Bases de Schiff du 3-Formyl-Gaiazulene Avec des Anilines Substituées et des Chlorhydrates Correspondants. Une Application de la Generalisation de la Regle de Déplacement de Plattner

The Interaction of Ferrocene and Its Derivatives with Aromatic Compounds

Alkaloid Studies—XLII. the Structures of Dichotamine, 1-Acetyl-Aspidoalbidine and 1-Acetyl-17-Hydroxyaspidoalbidine: Three New Alkaloids from Vallesia dichotoma Ruiz et Pav

The Catalyzed Reaction of Alkyl Bromides with Alkylmagnesium Bromides

Reactivity Criteria and the Purine Molecule

Oxidation of Organic Sulphides—XI Oxidation of Sulphoxides in Alkaline Solution

A New Ring-Expansion Reaction from Enamine and Dichlorocarbene

Total Synthesis of (±)-Folicanthine

Number 26

Massenspektrometrische Untersuchungen von Acylierten Peptiden

Microbiological Transformations—IV. Hydroxylation of Conessine

A Further Synthesis of α-Anhydrotrimethylbrazilone

On the Tautomerism of Amides

The Absolute Configurations of Ustilaginoidins

Fragmentation of α-Disubstituted Ketoximes—VIII

Structures of α-Kessyl Alcohol and Kessyl Glycol

The Absolute Configuration of Beyerol

A Novel Reductive Dimerization: The Reaction of 1,2-Dibenzoylethylene with P(III) Esters

Reactions of Acetylenic Amines—VII. A Novel Synthesis of Homomorpholines

Organic Syntheses by Means of Noble Metal Compounds—III. Reaction of π-Allylpalladium Chloride Complex with Carbon Monoxide

The Structure of Sitsirikine—A New Alkaloid From Vinca rosea Linn

The Sulfur Analog of Wurster's Blue Cation-Radical

Oxygen Exchange of Some Bicyclic Alcohols

Oxygen Exchange and Racemisation of 4-Methoxydiphenylmethanol in Moist Acidic Dioxan

The Origin of the Reactivity of Cyclohexanone

Addition Reaction of Sulfonyl Azides on Ethoxyacetylene

Number 27

Some New Reactions of Nickel Carbonyl with Organic Halides

Triterpenoid Compounds—VI. The Constitution of Melaleucic Acid—II

Long Range Shielding by the Epoxide Ring

Absolute Konfiguration von Narkotin

Lichtinduzierte Decarbonylierung Gelöster Ketone bei Raumtemperatur

Methylation of Carbohydrates—II. A Convenient Method for the Methylation of Polysaccharides

Einwirkung von N-Carbonyl-Sulfamidsäurechlorid auf Diene

The Structure of Albonoursin

A Generalised Rotation Rule for Heterocyclic and Aromatic Compounds

Preparation and Configuration of Some Cyclohexanols

Kinetics of Dedeuteration of Benzenoid Hydrocarbons

The Degenerate Cope Rearrangement of Tricyclo[3.3.1.04,6]Nona-2,7-Diene-9-One

A Synthesis of Dihydroanhydro-o-Trimethylbrazilin and Synthesis of DL-o-Tetramethylbrazilin

The Photochemical Isomerization and Fragmentation of Dehydronorcamphor

14-Epivincamine, a New Alkaloid from Vinca minor L

Errata: Synthesis of Isoquinoline Alkaloids—III. Pilocereine and "Isopilocereine"

Cation Radicals of Dibenzo-p-Dioxin and Related Compounds

Number 28

The Structure and Total Synthesis of Valinomycin

The Structure and Total Synthesis of Sporidesmolide II

Structure of Mustakone and Copaene

Some New Humulene-Based Sesquiterpenoids

A New Synthesis of D,L-β-Santalene and D,L-Epi-β-Santalene

The Structure of Cyclopenin and Cyclopenol, Metabolic Products from Penicillium cyclopium Westling and Penicillium viridicatum Westling

Beckmann Rearrangement of 3-Phenyl-2-Isoxazolines

Über Stabile Carboniumionen in der Cyclopentadienreihe

The High-Resolution Mass Spectra of Ajmalidine and Related Substances

Reaktionen mit Cyclopropylmagnesiumbromid

Triterpene—VIII. Die Umlagerung von 1-Substituierten Triterpenen in A-nor-B-Homo-Triterpene

The Bromination of Bicyclo(3.2.1)Octanone-3. An Example of An α,α-Diaxial Dibromocyclohexanone

Syntheses of 4-Fluoroestradiol and 7α-Fluoroestradiol

Nuclear Magnetic Resonance Studies of Tautomerism: Loss of Aromaticity in “leuco”-hydroxy and Amino Anthraquinones

The Correct Structure and Synthesis of Rengasine

Number 29

N-Alkylierung von Cyanwasserstoft Durch Carbeniumionen des Acht- und Zwölfrings

Protonenresonanz-Unter-Suchungen zur inneren Rotation—I. Behinderte Rotation um Einfachbindungen bei Mesitoyl-Verbindungen

On the Autoxidation of Indoles

The Oxidation of 2-Benzyl-3-Phenylindole

1.3-Additionen der Nitrone an Carbonester der Acetylenreihe

Umsetzungen des Isochinolin- und Phenanthridin-N-Oxyds mit Carbonestern der Äthylen- und Acetylenreihe

The Photoisomerization of a Cyclic Dienamine

Insertion Mechanisms of Atomic Carbon: Degradation of Aliene Produced by Reaction with Ethylene

The Cis-Cyclohexene Acetoxonium Ion. 2-Methyl-Cis-4,5-Tetramethylene-1,3-Dioxolenium Tetrafluoroborate

Synthetic Periplogenin

Photochemical Rearrangements of 2-Cyclohexenones

The Rearrangement of 12α-Methanesulfonyloxycholane

The Structure and Stereochemistry of Jamine, C12H35N3, by X-Ray Analysis

Structure Relationships in the Ormosia Alkaloids

Dehydrogenation of Three Ormosia Alkaloids

Bitter Principles of Caesalpinia bonducella

The Preparation of Aldehydes by Reduction of Esters of Carboxylic Acids with Sodium Aluminium Hydride

Reactions with Lead Tetraacetate—I. Oxidation of Saturated Aliphatic Alcohols—I

Errata: the Structure of Speciofoline and "Stipulatine" (Rotundifoline)

Photochemische Umsetzungen—I Triterpene—VI. Photochemische Reaktionen mit 2-Diazo-Allo-Betulon

Number 30

Perhydrotriphenylene

The Crystal and Molecular Structure of Bromoanhydrotetrodoic Lactone Hydrobromide, a Derivative of Tetrodotoxin

The Structure of Tetrodotoxin

The Structure and Stereochemistry of Tetrodotoxin

Peptidsynthesen mit Gemischten Anhydriden aus Aminosäuren und Saccharin

The Stereochemistry of α- and β-Santalol

On the Chlorination of Dicyclopentadiene-1, 8-Dione

Acylübertragungen mit α-Hydroxypyridylestern von Phosphor-und Carbonsäuren. Reaktive Ester Heterocyclischer Alkohole—II

Tetracyclosqualene and Its Bearing on the Structure of Cyclized Rubber

The Reduction of Ketones with Lithium Borohydride in Pyridine

Taxinine

Some N.M.D.R. Studies on Taxinine and Derivatives

The Structure of Taxinine, a Nitrogen-Free Compound Occurring in Taxus cuspidata

Bicyclo [1.1.0] Butane

The Stereochemistry of Some Oxidations of Phenylmethylpropylphospine

The Spontaneous Copolymerization of Bicyclo[2.2.1] Hept-2-Ene and Sulphur Dioxide. Evidence for Propagation by Bi-Radical Coupling

The Photochemical Conversion of Acetals to Carboxylic Esterss