作者:David A Flosser、Roy A Olofson
DOI:10.1016/s0040-4039(02)00738-4
日期:2002.6
A useful conversion of alcohols to alkyl fluorides via their fluoroformates is introduced. The fluoroformates are obtained in nearly quantitative yield from the alcohols by treatment with COF2 (generated in situ from bis(trichloromethyl) carbonate) in ether with KF as an added acid scavenger. The neat fluoroformates are cleaved to the fluorides by heating at 120–125°C using hexabutylguanidinium fluoride
引入了通过其氟甲酸酯将醇有用地转化为烷基氟化物的方法。通过用乙醚中的KF作为添加的除酸剂,用COF 2(由碳酸二(三氯甲基)酯原位生成)处理,从醇中以几乎定量的产率获得氟甲酸酯。通过使用六丁基胍鎓氟化物(HBGF)作为催化剂在120–125°C加热,将纯净的氟甲酸酯裂解为氟化物。