Pyrrole Chemistry. Part XXIX A Re-Examination of the Decarboxylation of 4-Acetyl-, 4-Formyl- and 4-Cyanopyrrole-2-Carboxylic Acids

Abstract
Decarboxylation of the readily available 4-acyl-2-pyrrolecarboxylic acids has been neglected owing to the poor yields reported in the literature. This study shows that high yields are possible under the correct reaction conditions.