Utility of Sulphones in Heterocyclic Synthesis: Synthesis of Some Pyridine, Chromene and Thiophene Derivatives

Abstract

Phenylsulfonylacetonitrile (1) when reacted with α,β-unsaturated nitriles (2a,b) and/or 2-hydroxynaphthaldehyde yields pyridine derivatives (3a,b) and / or the iminochromene derivative (4) respectively. The behavior of (1) towards some a-halogenated compounds has been investigated.

Keywords

• Phenylsulfonylacetonitrile
• pyridine derivatives
• chromene derivatives
• thiophene derivatives