Direct Approach to Multi-substituted Pyrroles from 2-Propynylamine and 1,3-Diketone or β-Keto Ester Using Bi(OTf)<sub>3</sub>Catalyst
作者:Kimihiro Komeyama、Motoyoshi Miyagi、Ken Takaki
DOI:10.1246/cl.2009.224
日期:2009.3.5
Bi(OTf)3 was found to be a good catalyst for the direct synthesis of multisubstituted pyrroles from the readily accessible 2-propynylamine and activated methylene compounds in which the bismuth played two roles: σ- and π-activations.