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.
作者:Lange, Markus、Alistratov, Nikita、Vilotijevic, Ivan
DOI:10.1039/d4ob01063a
日期:——
Picolines and quinaldines are valuable building blocks and intermediates in the synthesis of natural products and pharmaceuticals. Functionalization of the methyl group in picolines and quinaldines under mild conditions is challenging. We report that the concept of latent pronucleophiles enables Lewis base catalysed allylation of picolines and quinaldines with allylic fluorides starting from silylated
Two birds, one stone! The first kineticresolution of allylfluorides was achieved by the development of an organocatalyzed enantioselectiveallylictrifluoromethylation. Two kinds of chiral fluorinated compounds, which incorporate C*F and C*CF3 units, respectively, can thus be accessed by a single transformation.