A direct method for the synthesis of polyfunctionalized unsaturated carbonyl derivatives by Michael addition of nitroalkanes to enediones with the help of DBU
作者:Roberto Ballini、Giovanna Bosica
DOI:10.1016/0040-4020(95)00136-v
日期:1995.4
The Michael addition of several nitroalkanes to dimethyl maleate, (Z)-3-hexene-2,5-dione, N-ethyl maleimide, and N-phenyl maleimide, in MeCN or THF, proceeds very efficiently on DBU as base, and furnishes good to high yields of polyfunctionalized unsaturated carbonyl derivatives.
在MeCN或THF中,将几种硝基链烷烃在马来酸二甲酯,(Z)-3-己烯-2,5-二酮,N-乙基马来酰亚胺和N-苯基马来酰亚胺上的迈克尔加成反应非常有效地在DBU上作为碱进行,并提供多官能化的不饱和羰基衍生物的良好或高收率。