Catalytic Effect of Amines and Alcohols on Racemization of Optically Active Imidazoline Derivatives
スポンサーリンク
概要
- 論文の詳細を見る
The racemization of optically active imidazoline derivatives catalyzed by amines and alcohols was investigated. The racemization was effected by the catalysis of primary and secondary amines, but not by tertiary amines. In t-BuOH, imidazolines were racemized much more slowly than in primary alcohols. The mechanism through a pseudo-six-membered cyclic transition state was proposed for the racemization.
- 社団法人 日本農芸化学会の論文
著者
-
Noguchi Masao
Central Research Institute The Japan Tobacco & Salt Public Corporation
-
MATSUSHITA Hajime
Central Research Institute, Japan Tobacco Inc.
-
SHIBATA Saizo
Central Pharmaceutical Research Institute, Japan Tobacco Inc.
-
Kaneko Hajime
Central Research Institute Japan Tobacco Inc.
-
Saburi Masahiko
Department Of Applied Chemistry Saitama Institute Of Technology
-
SABURI Masahiko
Department of Synthetic Chemistry, Faculty of Engineering, The University of Tokyo
-
YOSHDCAWA Sadao
Department of Synthetic Chemistry, Faculty of Engineering, The University of Tokyo
関連論文
- Selection of Cultured Tobacco Cell Strains Producing High Levels of Ubiquinone 10 by a Cell Cloning Technique
- An Unprecedented Dimerization of 1, 2, 3-Butatriene Catalyzed by Palladium Complexes
- Rhodium Complexes of 1, 4-Disubstituted-1, 2, 3-butatrienes : Their Preparation and Reactivity
- Immobilization of a C_2 - Symmetric ansa - Zirconocene Complex on Silica Surfaces Using a Si-Cl Anchor : Catalysts for Isospecific Propene Polymerization
- The Olfactory Response of the Cigarette Beetle, Lasioderma serricorne FABRICIUS, to Various Host Foods and Cured Tobacco Extracts
- Stereoselective Synthesis of erythro-Serricornin, (4R, 6R, 7S)-, and (4596R, 75)-4?6-Dimethyl-7-hydroxynonan-3-one9 Stereoisomers of the Sex Pheromone of Cigarette Beetle
- Formylation of Amines by Dimethylformamide in the Presence of Hydrous Zirconium Oxide(Organic Chemistry)
- Zirconium Mediated Regioselective Carbon-Carbon Bond Formation Reactions
- Changes in Endogenous Ribosyl-trans-zeatin and IAA Levels in Relation to the Proliferation of Tobacco Crown Gall Cells
- Relationship between hormone content and autonomy in various autonomous tobacco cells cultured m suspension
- Synthesis of (±)-Ancistrofuran from 9-Hydroxydendrolasin
- Novel Renin Inhibitors Containing (2S, 3S, 5S)-2-Amino-1-cyclohexyl-6-methyl-3,5-heptanediol Fragment as a Transition-state Mimic at the P1-P1' Cleavage Site
- Agostic Interaction in Formally Five-coordinate Hydridobis[1, 3-bis(diphenylphosphino)propane]ruthenium(II)Ion
- Germination and Growth Inhibition of Acylnornicotines from Section Repandae of the Genus Nicotiana and Synthetic Acylnornicotines(Biological Chemistry)
- Structure and Characterization of 9,10-Diethyl-9,10-diphospha-9,10-dihydroanthracene as an Electron Donor
- Inhibitory Effects of Cembratriene-4,6-diol Derivatives on the Induction of Epstein-Barr Virus Early Antigen by 12-O-Tetradecanoylphorbol-13-acetate(Biological Chemistry)
- Characteristics of Cultured Tobacco Cell Strains Producing High Levels of Ubiquinone-10 Selected by a Cell Cloning Technique
- A New Convenient Synthesis of 3-Hydroxy-β-damascone
- Synthesis of 1-(2, 6, 6-Trimethyl-4-hydroxy-1-cyclohexen-1-yl)-1, 3-butanedione
- Mechanism of the optical activation of .ALPHA.-substituted carbonyl compounds via optically active immonium salts.
- Isolation of New Tobacco Constituents, 8, 9-Dihydro-8, 9-dihydroxymegastigmatrienone, from Japanese Domestic Suifu Tobacco
- Stereoisomers of trans-dichlorocobalt(III) complex with 1,7-bis((S)-2-pyrrolidinyl)-2,6-diazaheptane.
- Stereochemical properties of copper(II) complexes of (S)-3-aminohexahydroazepine. Crystal and molecular structure of bromobis[(S)-3-aminohexahydroazepine]copper(II) perchlorate[CuBr(S-ahaz)2]ClO4.
- Stereochemical properties of copper(II) complexes of (RS)-3-aminohexahydroazepine: Crystal and molecular structures of [(R)-3-aminohexahydroazepine][(S)-3-aminohexahydroazepine]copper(II) diperchlorate, [Cu(R-ahaz)(S-ahaz)](ClO4)2 and related complexes.
- Syntheses of Two Diastereomers of Dihydrololiolide and ( ± )-3aα, 4, 5, 7a-Tetrahydro-4, 4, 7aα-trimethyl- 2(3H)-benzofuranone
- Catalytic Effect of Amines and Alcohols on Racemization of Optically Active Imidazoline Derivatives
- C15 and C17 Aldehydes, from Japanese Domestic Tobacco, Nicotiana tabacum cv. Suifu
- Influences of Cultural Conditions on Polyphenol Formation and Growth of Amacha Cells (Hydrangea macrophylla Seringe var. Thunbergii Makino) and Changes of Polyphenol Contents in Leaves of Amacha Plant during Growth
- Identification of 3-Hydroxy-4, 5-dimethyl-2-(5 H)-furanone (Sotolon) in Roasted Tobacco Volatiles
- Regioselective hydrogenation of unsymmetrically substituted cyclic anhydrides catalyzed by ruthenium complexes with phosphine ligands.
- Asymmetric transformation of 2-phenyl- and 2-chloroalkanoic acids via chiral oxazolines.
- Adsorption of Volatiles from Roasted Tobacco on Activated Carbon and Desorptive Recovery by Ether Extraction
- Recovery of Roasted Tobacco Volatiles Released from Activated Carbon by Extraction and Steam Desorption Methods
- Composition of Semivolatiles from Roasted Tobacco
- Reduction of Quinones with 2-Propanol over Hydrous Zirconium Oxide
- Isomers of trans-dichlorocobalt(III) complex with (2S,10S)-2,10-diamine-4,8-diazaundecane.
- Comparison of Roasted Tobacco Volatiles with Tobacco Essential Oil and Cigarette Smoke Condensate
- 1-(6-Hydroxyoctanoyl)nornicotine and 1-(7-HydroxyoctanoyFjnornicotine, Two New Alkaloids from Japanese Domestic Tobacco
- Syntheses of 8, 9-Dehydrotheaspirone and trans- and cis-8, 9-Dehydro-4, 5-dihydrotheaspirone
- Approach to the Synthesis of Aromatic Resin Acids
- Optical activation of 2-phenylpropionaldehyde via some 2-substituted pyrrolidine enamines.
- Asymmetric transformation of alanine via optically labile imidazolines.
- Isolation of enammonium salt and its rearrangement to the corresponding iminium salt.
- Preparation of trans-dichlorocobalt(III) complexes of N-alkylethylenediamines.
- Preparation and stereochemistry of a new isomer (.LAMBDA.-cis-.BETA.) of cobalt(III) complexes with (3S,8S)-3,8-dimethyl-1,4,7,10-tetraazadecane.
- Isolation and assignment of two isomers of trans(NO2)-dinitrobis-((S)-2-aminomethylpyrrolidine)cobalt(III) perchlorate.