The Reaction of Nitriles with Phosgene. V. Cyclization Reactions of<i>N</i>-(α-Chlorobenzylidene)carbamoyl Chloride
作者:Shozo Yanagida、Masaaki Yokoe、Masataka Ohoka、Saburo Komori
DOI:10.1246/bcsj.44.2182
日期:1971.8
N-(α-Chlorobenzylidene)carbamoyl chloride (1) reacts with hydrazine hydrate to give 3-phenyl-1,2,4-triazolone (2), with sodium azide in the presence of water to give 5-phenyltetrazole (3), and with aliphatic nitriles in the presence of hydrogen chloride to give 6-chloro-2-phenyl-5-substituted-4(3H)-pyrimidones (5) and 4,6-dichloro-2-phenyl-5-substituted pyrimidines (6). However, the reaction of 1 with trichloroacetonitrile
N-(α-
氯亚苄基)
氨基
甲酰氯(1)与
水合
肼反应生成3-苯基-1,2,4-
三唑酮(2),在
水存在下与
叠氮化
钠反应生成5-苯基
四唑(3),并在
氯化氢存在下与脂肪族腈反应得到 6-
氯-2-苯基-5-取代-4(3H)-
嘧啶酮 (5) 和 4,6-二
氯-2-苯基-5-取代
嘧啶 (6 )。然而,1 与
三氯乙腈或新
戊腈在
氯化氢存在下的反应没有得到预期的三嗪。