Carbanions of alkanesulfonyl halides and esters react with nonenolizable carbonyl compounds to give olefins. Mechanistic studies reveal that initial aldol-type addition of the carbanions is followed by cyclization–fragmentation to alkenes, and the leaving group on the sulfonyl moiety (RSO2X) controls carbanion stability and rate of the olefin formation.
α-Metallation and subsequent alkylation of alkyl alkanesulfonates
作者:W. E. Truce、D. J. Vrencur
DOI:10.1139/v69-138
日期:1969.3.1
Strong bases affect α-metallation of alkylalkanesulfonates; subsequent alkylation offers a useful approach to esters of the higher sulfonic acids.
强碱影响烷基链烷磺酸盐的α-金属化;随后的烷基化提供了一种有用的方法来制备高级磺酸的酯。
Vicarious Nucleophilic Substitution of Hydrogen in Nitroarenes using 1-Chloroalkanesulfonic Esters; A Simple Synthesis of 1-(Nitrophenyl)-alkanesulfonic and (Nitrophenyl)-methanesulfonic Esters
作者:M. Mąkosza、J. Goliński
DOI:10.1055/s-1983-30611
日期:——
MAKOSZA, M.;GOLINSKI, J., SYNTHESIS, BRD, 1983, N 12, 1023-1025
作者:MAKOSZA, M.、GOLINSKI, J.
DOI:——
日期:——
Preparation of Benzylic α,α-Difluoronitriles, -tetrazoles, and -sulfonates via Electrophilic Fluorination
作者:Christopher C. Kotoris、Mei-Jin Chen、Scott D. Taylor