Regioselective Reduction of 2,4‐Diacylpyrroles and the Synthesis of a 2,4‐Divinylpyrrole

Abstract

Reduction of 2,4-diacylpyrroles followed by dehydration to prepare the divinylpyrroles has been studied. The N-phenylsulfonyl group exhibited directing ability at the 4-position during the reduction of 2,4-diacylpyrrole and complete regioselectivity was achieved for formations of the 2-and 4-