Synthesis of Some 3‐Phenyl‐4‐methyl‐6‐(6‐arylpyridin‐2‐yl)‐ and 3‐Phenyl‐4‐methyl‐6‐(4,6‐diarylpyridin‐2‐yl) Coumarins.

Abstract

Coumarins. -The title compounds are synthesized by reacting coumarinoylmethylpyridinium bromide (IV) with Mannich bases (V) and α,β-unsaturated ketones (VII), resp., under Kroehnke's reaction condition. -(BRAHMBHATT*, D. I.; PATEL, C. N.; PANDYA, V. P.; PATEL, M. A.; Indian J.