3-ACYL-1-TOSYLPYRROLES AS EXCELLENT PRECURSORS OF 3-VINYLIDENEPYRROLES
Two simple general methods for the synthesis of 3-vinylidenepyrroles 4a - c both starting from 3-acyl-1-tosylpyrroles have been developed.The simplest term of this class, 3-(1-methylethenyl)pyrrole, 4a, and the congeners 3-(1-phenylethenyl)pyrrole, 4b, an