Multicomponent Synthesis of Pyrroles from Cyclopropanes: A One-Pot Palladium(0)-Catalyzed Dehydrocarbonylation/Dehydration
作者:William J. Humenny、Polydoros Kyriacou、Katarina Sapeta、Avedis Karadeolian、Michael A. Kerr
DOI:10.1002/anie.201206177
日期:2012.10.29
es yields tetrahydro‐1,2‐oxazines, which in turn undergo a Tsuji dehydrocarbonylation to give dihydro‐1,2‐oxazines (see scheme; dba=dibenzylideneacetone). Addition of base to this reaction mixture results in clean conversion to pyrroles. The result is a flexible three‐component strategy for the synthesis of tetrasubstituted pyrroles.