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.
Monofluorination of α-dichlorosulfides: A short access to α-fluoro polyfunctionalised thioethers
摘要:
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.