An<i>Ortho</i>-Directing Effect in the Nucleophilic Aromatic Substitution Reactions of Primary and Secondary 2,4-Dichloro- and 2,3,4- Trichlorobenzamides with Ethanethiolate
作者:Geoffrey K. Cooper、Don R. Baker、Larry B. Barden
DOI:10.1080/00397919508013427
日期:1995.3
Abstract The reactions of the primary amide and several secondary amides of 2,4-dichloro- and 2,3,4-trichlorobenzoic acid with potassium ethanethiolate in DMF were observed to proceed with a remarkable degree of ortho-regioselectivity. This effect was found to be absent using related tertiary amides as substrates.
摘要 观察到 2,4-二氯苯甲酸和 2,3,4-三氯苯甲酸的伯酰胺和几种仲酰胺与乙硫醇钾在 DMF 中的反应具有显着的邻位区域选择性。发现使用相关叔酰胺作为底物不存在这种效果。