作者:Orazio A. Attanasi、Luca Bianchi、Lucia De Crescentini、Gianfranco Favi、Fabio Mantellini
DOI:10.1002/ejoc.201100340
日期:2011.6
o-4,5,6,6a-tetra-hydropyrrolo[3,4-b]pyrrole-3,3a(1H)-dicarboxylates, and 5-benzyl-7a-hydroxy-1,4,5,6,7,7a-hexahydro-3aH-pyrrolo-[3,2-c]pyridine-3,3a-dicarboxylates starting from diazadienes and heterocycles containing an activated methine group has been developed. This transformations proceeds by Michael addition/5-exo cyclization sequence.
6a-羟基-6,6a-dihydro-1H-thieno[3,4-b]pyrrole-3,3a(4H)-dicarboxylates, 5-(2-furylmethyl)-6a-hydroxy-的碱促进化学选择性合成6-oxo-4,5,6,6a-四氢吡咯并[3,4-b]pyrrole-3,3a(1H)-dicarboxylates, and 5-benzyl-7a-hydroxy-1,4,5,6, 7,7a-六氢-3aH-pyrrolo-[3,2-c]pyridine-3,3a-dicarboxylates 从二氮杂二烯和含有活化次甲基的杂环开始被开发出来。这种转化是通过迈克尔加成/5-外环化序列进行的。