Regioselective Sonogashira
Reactions of <i>N</i>-Methyltetrabromopyrrole: First
Synthesis of Tri- and Tetra(1-alkynyl)pyrroles
作者:Peter Langer、Farman Ullah、Tung Dang、Joachim Heinicke、Alexander Villinger
DOI:10.1055/s-0028-1087947
日期:——
N-Methyl-2,3,4,5-tetrabromopyrrole is transformed into a variety of alkynyl-substituted pyrroles by regioselective Sonogashira cross-coupling reactions. In this context, the synthesis of the first tri- and tetra(1-alkynyl)pyrroles is reported.
通过区域选择性 Sonogashira 交叉偶联反应,N-甲基-2,3,4,5-四溴吡咯可转化为多种炔基取代的吡咯。在此背景下,报告了首个三(1-炔基)和四(1-炔基)吡咯的合成。