α,α-Difluoro-α-phenylsulfanyl-α-trimethylsilylmethane as a difluoromethyl building block: A general strategy to α,α-difluoromethyl aryl ketones
作者:Kanhokthron Boonkitpattarakul、Darunee Soorukram、Patoomratana Tuchinda、Vichai Reutrakul、Manat Pohmakotr
DOI:10.1016/j.jfluchem.2011.06.036
日期:2011.11
The synthetic utility of α,α-difluoro-α-phenylsulfanyl-α-trimethylsilylmethane (PhSCF2SiMe3; 1) as a difluoromethyl building block providing a general strategy to α,α-difluoromethyl aryl ketones was demonstrated. Oxidation, by using m-chloroperoxybenzoic acid, of the readily available 1-aryl-2,2-difluoro-2-phenylsulfanyl-1-trimethylsiloxyethanes obtained from fluoride-catalyzed nucleophilic addition
证明了α,α-二氟-α-苯基硫烷基-α-三甲基甲硅烷基甲烷(PhSCF 2 SiMe 3 ; 1)作为二氟甲基结构单元的合成用途,为α,α-二氟甲基芳基酮提供了一般策略。氧化,通过使用米的可容易地从氟化物催化的亲核加成PhSCF得到1-芳基-2,2-二氟-2-苯硫基-1- trimethylsiloxyethanes的氯过氧苯甲酸,2森达3与芳香醛,然后通过快速热解真空消除可提供中等产率的α,α-二氟甲基芳基酮。