The ring opening fluorination of glycidic gem-cyanoesters was achieved by action of pyridine polyhydrofluoride at 25-degrees-C in dichloromethane. The regioselective nucleophilic substitution reaction allows the synthesis of a new class of fluorohydrins with OH, CN and CO2R on the same carbon atom.
Synthesis of 3-Fluoropyruvates from Glycidic-α-Cyanoesters
作者:I. Chehidi、M. M. Chaabouni、A. Baklouti
DOI:10.1080/00397919608003610
日期:1996.1
The decyanation of alpha-cyano-beta-fluoro-alpha-hydroxyesters is achieved, at room temperature, by action of Ni(OAc)(2). The corresponding 3-fluoropyruvates are obtained in good yields.
Reduction selective par le borohydrure de sodium d'un groupe ester ou nitrile dans les epoxydes gem disubstitues par deux croupes attracteurs d'electrons
作者:J. Mauger、A. Robert
DOI:10.1016/s0040-4020(01)81701-4
日期:1988.1
A simple synthesis of New Push-Pull substituted imidazoles by chemoselective nucleophilic attack of α-cyano epoxides
A chemoselective reaction of amidines or guanidines with alpha- cyano epoxides leads to new 4-amino-5-carbethoxy or 4-hydroxy-5-cyano or 4-carbethoxy-5-aryl- imidazoles depending on the steric hindrance of the epoxides and on the reaction medium.
Synthesis of α-Cyano-β-fluoro-α-hydroxyesters
作者:F. Ammadi、M. M. Chaabouni、H. Amri、A. Baklouti
DOI:10.1080/00397919308011124
日期:1993.9
The ring opening fluorination of glycidic gem-cyanoesters was achieved by action of pyridine polyhydrofluoride at 25-degrees-C in dichloromethane. The regioselective nucleophilic substitution reaction allows the synthesis of a new class of fluorohydrins with OH, CN and CO2R on the same carbon atom.