Enantioselective Lewis base catalyzed phosphonyldifluoromethylation of allylic fluorides using a <i>C</i>-silyl latent pronucleophile
作者:You Zi、Markus Lange、Ivan Vilotijevic
DOI:10.1039/d0cc01815e
日期:——
The first enantioselective phosphonyldifluoromethylation is enabled by the use of diethyl (difluoro(trimethylsilyl)-methyl)phosphonate reagent as a latent pronucleophile in the Lewisbasecatalyzed substitution of allylic fluorides. The reaction proceeds as a kinetic resolution to produce both the difluoromethylphosphonate products and the remaining fluorides in good yields and with high stereoselectivity
Synthesis of chiral (tetrazolyl)methyl-containing acrylates via silicon-induced organocatalytic kinetic resolution of Morita–Baylis–Hillman fluorides
作者:Takayuki Nishimine、Hiromi Taira、Satoru Mori、Okiya Matsubara、Etsuko Tokunaga、Hidehiko Akiyama、Vadim A. Soloshonok、Norio Shibata
DOI:10.1039/c6cc08830a
日期:——
A new approach for the asymmetric installation of a (tetrazolyl)methyl group via Si/F activation using organocatalytic kinetic resolution of racemic MBH-fluorides.