A highly efficient transacetalization of 2-formylpyrrole acetals in alkaline media
摘要:
The reaction of 2-formylpyrrole acetals with sodium alkoxide in alcohols at reflux temperature smoothly proceeded to generate corresponding transacetalization products in nearly quantitative yields. A plausible mechanism involving the formation of a highly reactive intermediate azafulvene species was proposed to explain the observed transformation. (C), 2011 Zhao Hua Yan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.