Solvent-free and room temperature synthesis of thiochromans in the presence of a catalytic amount of tungstophosphoric acid
摘要:
Tungstophosphoric acid catalyzed rapid and good yielding reactions of alpha, beta-unsaturated aldehydes with arenethiols to give the corresponding 4-thioaryl-1,2,3,4-tetrahydro-l-benzothiopyrans (thiochromans) under solvent-free and room temperature conditions. (c) 2005 Elsevier Ltd. All rights reserved.