有機硫黄化合物の合成化学的研究(第1報) : 硫黄の存在下, 活性メチル基のo-置換二官能分子との反応
1971 年 91 巻 2 号 p. 180-186
詳細
1971 年 91 巻 2 号 p. 180-186
2-Picoline (I), 4-picoline (V), quinaldine (VI), 4-methylquinoline (VII), 2-methylbenzothiazole (VIII), and 2-methylbenzimidazole (XXX) as the compounds containing active methyl group were reacted with o-phenylenediamine (II), o-aminothiophenol (XIII), or o-aminophenol (XXVIII) as the ortho-substituted bifunctional compounds, in the presence of surfur, and corresponding 2-substituted benzazoles were obtained. Reaction conditions to obtain a good yield in the case of I and II were examined from the molar ratio of the reactants, reaction temperature, and time, and the optimal conditions were found to be the molar ratio of 1 : 1 -1.2 : 3 for I, II, and sulfur, reaction temperature of 160-170° (bath temperature), and reaction time of 10 hours.
