Exclusive Synthesis of β-Alkylpyrroles under Indium Catalysis: Carbonyl Compounds as Sources of Alkyl Groups
作者:Teruhisa Tsuchimoto、Motohiro Igarashi、Kazuki Aoki
DOI:10.1002/chem.201000733
日期:——
mixing readily available carbonyl compounds, pyrroles, and nucleophiles with an indium catalyst was found to give β‐alkylpyrroles in a regiospecific manner. Removal of benzyl (Bn) and cumyl groups from the nitrogen atoms of the products enables access to nitrogen‐unsubstituted β‐alkylpyrroles (see scheme).
不再困难:仅将易于获得的羰基化合物,吡咯和亲核试剂与铟催化剂混合,即可以区域特异性方式产生β-烷基吡咯。从产品的氮原子中除去苄基(Bn)和枯基,可以使用未取代氮的β-烷基吡咯(请参阅方案)。