作者:L. M. Potikha、A. R. Turelik、V. A. Kovtunenko
DOI:10.1007/s10593-010-0405-5
日期:2009.10
Bromination of 1,3-bis(aryl)-2-buten-1-ones by N-bromosuccinimide in anhydrous carbon tetrachloride gives Z-1,3-bis(aryl)-4-bromo-2-buten-1-ones. The effect of the nature of substituent in the benzene ring on the course of a reaction with nucleophiles has been studied. Heating an alcohol solution of these ketones (Ar = 4-MeOC6H4, 4-ClC6H4) in the presence of acid or in the presence of base (Ar = Ph)
N-溴琥珀酰亚胺在无水四氯化碳中溴化1,3-双(芳基)-2-丁烯-1-酮,得到Z-1,3-双(芳基)-4-溴-2-丁烯-1-酮。已经研究了苯环中取代基的性质对与亲核试剂反应过程的影响。在酸存在下或在碱存在下(Ar = Ph)加热这些酮(Ar = 4-MeOC 6 H 4,4 -ClC 6 H 4)的醇溶液,得到2,4-双(芳基)呋喃。用硫代乙酰胺处理1,3-双(芳基)-4-溴-2-丁烯-1-酮得到2,4-双(芳基)噻吩。H 2 O 2对卤素取代的二氢吡啶酮的氧化用/ NaOH得到(3-溴甲基-3-芳基-2-环氧乙烷基)(芳基)甲烷酮。取决于试剂的结构,卤素取代的二氢吡啶酮与芳基肼的反应产生1,3,5-三芳基-1,6-二氢哒嗪或1,3,5-三芳基吡啶并鎓溴化物。