Reactions of sulfonamides RSO2NHR' with chlorodifluoromethane and solid alkali give the corresponding derivatives RSO2N(CHF2)R' containing a difluoromethyl group on the nitrogen atom. Sulfonamides derived from 2-aminobenzothiazole and 2- and 4-aminopyridines react with chlorodifluoromethane at the endocyclic nitrogen atom.
DOI:
10.1023/a:1020813915169
作为产物:
描述:
邻甲苯胺 、 2-甲基-5-硝基苯磺酰氯 在
4-二甲氨基吡啶二氯甲烷 、 水 、 正己烷 作用下,
以
二氯甲烷 为溶剂,
反应 20.0h,
以to give the product (1.29 g, 84% yield) as a white solid, mp 171-173° C的产率得到2-methyl-N-(2-methylphenyl)-5-nitrobenzenesulfonamide