Synthesis of α,α-dichloroalcohols, α-hydroxyketones and 1-chloro-1-arylalkylene oxides via protonation of acyllithium reagents
作者:George W Kabalka、Nan-Sheng Li、Su Yu
DOI:10.1016/s0022-328x(98)00797-9
日期:1999.1
The protonation of acyllithium reagents generated in situ from alkyllithiums and carbon monoxide in the presence of dichloromethane or dichloroarylmethanes produces α,α-dichloroalcohols in high yields. The reaction produces α-hydroxy-ketones in high yields when the aryl group of dichloroarylmethane contains a strong electron-donating group at the ortho or para position. The transformation of α,α-dichloro-α-aryl
在二氯甲烷或二氯芳基甲烷的存在下,由烷基锂和一氧化碳原位产生的酰基锂试剂的质子化可高产率地产生α,α-二氯醇。当二氯芳基甲烷的芳基在邻位或对位含有强供电子基团时,该反应可高产率地产生α-羟基酮。改造α,α -二氯- α -芳基醇转化成1-氯-1-芳基亚烷基氧化物的以高产率通过使用氨基钠作为碱来实现。