Ortho-carboxylate Effects in Copper-mediated Nucleophilic Substitution of Halothiophenecarboxylic Acids and Halobenzoic Acids with Sodium Bisulphite
作者:Govindarajan K. Ramaswamy、Thanigaiarasu Mohanasundaram、Murugesan Velayutham、Balasubramanian K. Kuppuswamy
DOI:10.1002/jccs.201190140
日期:2011.12
Ortho‐carboxylate effects in Ullmann type nucleophilicsubstitution reactions were found to be much more pronounced as compared to those of other substituent and steric factors. In this study, we propose an ortho halogen assisted intramolecular oxidative addition‐reductive elimination mechanism that fits our experimental observations. Experimental data has been generated with halothiophenecarboxylic