作者:L. M. Potikha、V. A. Kovtunenko、A. V. Turov、G. V. Palamarchuk、R. I. Zubatyuk、O. V. Shishkin
DOI:10.1007/s10593-009-0269-8
日期:2009.3
The direction of the reaction of 4-bromo-1,3-diphenyl-2-buten-1-one (γ-bromodypnone) with hydrazines depends on the nature of the substituent they contain. Reaction with 1-methylhydrazinium hydrosulfate gives 1-methyl-3,5-diphenylpyridazin-1-ium bromide but carboxylic acid hydrazides give N-(2,4-diphenyl-1H-pyrrol-1-yl)carboxylic acid amides. γ-Bromodypnone and phenylhydrazine give both 1,3,5-triphenyl-1
4-溴-1,3-二苯基-2-丁烯-1-酮(γ-溴代嘧啶酮)与肼的反应方向取决于它们所含取代基的性质。与1-甲基肼基硫酸氢盐反应得到1-甲基-3,5-二苯基吡啶并嗪-1-溴化物,而羧酸酰肼得到N-(2,4-二苯基-1H-吡咯-1-基)羧酸酰胺。γ-溴代苯醌和苯肼可同时生成1,3,5-三苯基-1,4-二氢哒嗪和N,2,4-三苯基-1H-吡咯-1-胺(15%)。1-(2,4-二硝基苯基)肼得到(Z)-4-溴-1,3-二苯基-2-丁烯-1-酮的2,4-二硝基苯基hydr。2,4-二苯基-1H-吡咯-1-胺与芳族醛的缩合容易生成N-(芳基亚甲基)-2,4-二苯基-1H-吡咯-1-胺,与甲基碘烷基化得到N,N-二甲基-2,4-二苯基-1H-吡咯-1-胺。