Hamad Al Matar
Kuwait University, Kuwait
Title: Chitosan as heterogeneous catalyst in michael additions: Reaction of cinnamonitriles with active methyl, active methylenes and phenols
Biography
Biography: Hamad Al Matar
Abstract
The reaction of active methylenes (cyclic and acyclic), phenols, 2-thiazolylacetonitrile and alkyl pyridazinyl carbonitriles with benzylidine malononitrile in ethanolic chitosan afforded amino pyrancarbonitriles 2, benzopyrancarbonitriles 3, thiazolopyridine 4, and benzopyridazines 5 respectively, in yields comparable to those obtained in ethanolic piperidine [1-3]. Much lower yields were obtained in aqueous solutions.