DEFLUORINATION REACTIONS OF<i>gem</i>-DIFLUORO- AND MONOFLUOROOLEFINS. NOVEL METHODS FOR ONE-CARBON HOMOLOGATIONS OF CARBONYL COMPOUNDS LEADING TO ALDEHYDES, CARBOXYLIC ACIDS, AND ESTERS
作者:Sei-ichi Hayashi、Takeshi Nakai、Nobuo Ishikawa
DOI:10.1246/cl.1980.651
日期:1980.6.5
gem-difluoroolefins (1) easily prepared via the facile difluoromethylenation of carbonylcompounds afforded the carboxylic acids (or esters). The homologation method was applied to the synthesis of anti-inflammatory ibuprofen. Furthermore, defluorinative hydrolysis of monofluoroolefins obtained via the reduction of 1 gave the aldehydes.