Fluorination of α,α-dichlorosulfides: access to gem-difluorothioethers as useful building blocks
摘要:
The synthesis of alkylsulfanyidifluoro-acetate and ketones by the Halex reaction is described. The remarkable reactivity of thiodifluoroacetate derivatives opened rapid access for the preparation of useful building blocks such as gem-difluoroketones and amides. (C) 2003 Elsevier Science Ltd. All rights reserved.
Synthesis of α-fluorinated-α,α-difunctionalized sulfides and sulfones
作者:C. Jouen、M.C. Lasne、J.C. Pommelet
DOI:10.1016/0040-4039(96)00186-4
日期:1996.4
The highly functionalized organofluorine compounds 3a-c were prepared from the activated dichlorinated sulfides 2a-c by displacement of a chlorine atom using nucleophilic fluorination agents such as dihydrogenfluoride polymer-supported. Fluorination of sulfoxides 5a-c with diethylaminosulfur trifluoride gives monofluoro sulfides 6a-c, subsequently transformed into α-chloro-α-fluoro sulfides 3a-c and
Monofluorination of α-dichlorosulfides: A short access to α-fluoro polyfunctionalised thioethers
作者:C Jouen、J.C Pommelet
DOI:10.1016/s0040-4020(97)00778-3
日期:1997.9
alpha-Chlorinated-alpha-fluorinated thioethers were synthesized in good yields by nucleophilic fluorination of their corresponding dichlorinated thioethers. A complete conversion of dihalosulfides 2 into alpha-fluoro-alpha-chlorosulfides 3 was achieved with Et3N.3HF in refluxing acetonitrile. (C) 1997 Elsevier Science Ltd.