A systematic study on the use of different organocatalytic activation modes for asymmetric conjugated addition reactions of isoindolinones
作者:Francesco Scorzelli、Antonia Di Mola、Francesco De Piano、Consiglia Tedesco、Laura Palombi、Rosanna Filosa、Mario Waser、Antonio Massa
DOI:10.1016/j.tet.2016.12.036
日期:2017.2
In this article we describe a series of new asymmetric Michael reactions of carboxylate-3-substituted isoindolinones used as nucleophiles in the synthesis of valuable chiral tetrasubstituted derivatives. It has been shown that the reactivity and enantioselectivity strongly depend on the substitution pattern of the isoindolinone, requiring either cinchona-alkaloid based phase transfer catalysts or bifunctional
在本文中,我们描述了一系列有价值的手性四取代衍生物合成中用作亲核试剂的羧酸3-取代的异吲哚满酮的新的不对称迈克尔反应。已经显示,反应性和对映选择性强烈取决于异吲哚啉酮的取代模式,需要基于金鸡纳生物碱的相转移催化剂或双官能叔胺有机催化剂。而且,基于脯氨醇-TMS醚的仲胺催化剂允许开发与肉桂醛的迈克尔/环化串联反应以合成氮杂-多环衍生物。