Phosphonodifluoromethyl and phosphonothiodifluoromethyl radicals. Generation and addition onto alkenes and alkynes

S Pignard, C Lopin, G Gouhier…

Index: Pignard, Sebastien; Lopin, Chrystel; Gouhier, Geraldine; Piettre, Serge R. Journal of Organic Chemistry, 2006 , vol. 71, # 1 p. 31 - 37

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Citation Number: 17

Abstract

Selanylated difluoromethylphosphonates and difluoromethylphosphonothioates are good precursors to phosphonodifluoromethyl and phosphonothiodifluoromethyl radicals, respectively. When generated in the presence of alkenes and a hydrogen donor, the corresponding α, α-difluorinated alkylphosphonates or alkylphosphonothioates are produced in fair to good yields. The use of alkynes results in the formation of α, α- ...