Rotational isomerism in fluorene derivatives. X. The conformational equilibria of 9-substituted 9-(2-methylthiophenyl)- and 9-substituted 9-(2-methylsulfinylphenyl)fluorene derivatives.

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概要

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• Several 9-substituted 9-(2-methylthiophenyl)fluorene derivatives and their oxidation products, 9-substituted 9-(2-methylsulfinylphenyl)fluorene derivatives were prepared. Each equilibrium constant was investigated and the conformational equilibria <I>ap</I>\rightleftarrows<I>sp</I> of these compounds were discussed on the basis of nonbonding intramolecular interactions (attraction or repulsion) between 2-substituents in phenyl moieties (methylthio or methylsulfinyl) and fluorene ring or 9-substituents. It was found that the conformational equilibria were effected by the electronic properties of methylthio and methylsulfinyl groups. Kinetic data for internal rotation of a few compounds were shown.

• 公益社団法人 日本化学会の論文

著者

• Kajigaeshi Shoji

  Department Of Applied Chemistry And Chemical Engineering Faculty Of Engineering Yamaguchi University

• Fujisaki Shizuo

  Department Industrial Chemistry

• Nishida Akiko

  Department Of Anesthesiology Gunma University School Of Medicine

• Takamuku Michinao

  Department of Industrial Chemistry, Faculty of Engineering, Yamaguchi University

関連論文

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• Rotational isomerism in fluorene derivatives XXII syntheses of 1-substituted 2'-methyl-9, 9'-bifluorenyl derivatives and structures of their stereoisomers
• Synthesis of tropolone and tropone derivatives condensing fluorene moiety
• Synthesis and properties of 3-aminoacrylonitriles
• Oxidation using quaternary ammonium polyhalides VII. Oxidation of primary amines and hydrazo compounds by use of benzyltrimethylammonium tribromide
• Halogenation using quaternary ammonium polyhalides XXVIII. effect of substituents on brominating ability of quaternary ammonium tribromides
• Syntheses and reactions of enamines from 9-formylfluorene
• Rotational Isomerism in Fluorene Derivatives XIV Conformational Equilibria of 9-Substituted 9-(2-Cyanomethylphenyl) fluorene Derivatives
• Synthesis of 2-dialkylamino-5-hydroxy-1, 3-dithian-2-ylium perchlorates and their intramolecular rearrargements by use of bases
• Deuteration of Bromophenol Derivatives with Cu-Al Alloy in a D_2O Solution of Sodium Carbonate or Barium Oxide
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• Selective Bromination of Aromatic Amines by Use of Tetrabutylammonicm Tribromide and Benzyltrimethlammonnium Tribromide
• Halogenation Using Quaternary Ammonium Polyhalides XX V : Bromination of Acetanilides with Benzytrimethylammonium Tri-bromide-Zinc Chloride System
• Halogenation Using Quaternary Ammonium Polyhalides XX II : Selective Bromination of Aromatic Ethers with Benzyltrimeth-ylammouium Tribromide
• Halogenation Using Quaternary Ammonium Polyhalides XX IV : Chlorination of Acetanilides with Benzyltrimethylam-monium Tetrachloroiodate
• Halogenation Using Quaternary Ammonium Polyhalides XX VI : CHLORINATION OF PHENOLS WITH BEN-ZYLTRIMETHYLAMMONIUM TETRACHLOR-OIDATE
• Halogenation Using Quaternary Ammonium Polyhalides XX III : Bromination of Aromatic Amines with Polymer-bound Benzytrimethylammonium Tribromide
• Halpgenation Using Quaternary Ammonium Polyhalides XXI : Chlorination of Some Aromatic Compounds with Tetrabutylammonium Trichloride
• Oxidation Using Quaternary Ammonium Polyhalides V : Selective Oxidation of Benzyl Alcohols by the Use of Benzyltyimethylammonium Tribromide
• Oxidation Using Quaternary Ammonium Polyhalides IV ; Selective Oxidation of Sulfides to Sulfoxides with Benzyltrimethylammonium Tribromide
• Halogenation Using Quaternary Ammonium Polyhalides XX : Bromination of Phenols Polymer-Bound Benzyltrimethylammouium Tri-bromide
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