Diels–Alder reaction of unsymmetrical dienes with methyl acrylate
Abstract
The Diels–Alder reactions of 1-(p-substituted phenyl)buta-1,3-dienes with methyl acrylate are shown to give 2-arylcyclohex-3-enecarboxylates, irrespective of the nature of the aryl-substituent, but the steric course of the reaction is affected by the substituent. Similar results were obtained with 1-aryl-2,3-dimethylbuta-1,3-dienes.