作者:B. I. Usachev、D. L. Obydennov、M. I. Kodess、G. -V. Röschenthaler、V. Ya. Sosnovskikh
DOI:10.1007/s11172-009-0162-8
日期:2009.6
Ethyl 6-phenylcomanic acid with hydrazine hydrate and hydroxylamine gives 4-oxo-6-phenyl-4H-pyran-2-carbohydrazide and 4-oxo-6-phenyl-4H-pyran-2-carbohydroxamic acid, whereas 6-phenylcomanic acid with ammonia in aqueous DMSO gives 4-hydroxy-6-phenylpicolinic acid, converted further to its ethyl ester and hydrazide. The reaction of 6-phenylcomanic acid with phenylhydrazine gives rise to 3-(1,5-dipheny
乙基 6-苯基comanic acid 与水合肼和羟胺生成 4-oxo-6-phenyl-4H-pyran-2-carbohydrazide 和 4-oxo-6-phenyl-4H-pyran-2-carbohydroxamic 酸,而 6-phenylcomanic acid 与DMSO 水溶液中的氨生成 4-羟基-6-苯基吡啶甲酸,进一步转化为其乙酯和酰肼。6-苯甲酸与苯肼反应生成 3-(1,5-二苯基-1H-吡唑-3-基)-2-(2-苯基腙)丙酸,通过 Fischer 反应转化为 3- (1,5-二苯基-1H-吡唑-3-基)-1H-吲哚-2-羧酸。