Sequential perfluoroalkylation and asymmetric reduction of nitriles triggered with perfluoroalkyl titanates: catalytic asymmetric synthesis of perfluoroalkyl amines
作者:Koichi Mikami、Tatsushi Murase、Lili Zhai、Susumu Kawauchi、Yoshimitsu Itoh、Shigekazu Ito
DOI:10.1016/j.tetlet.2009.12.140
日期:2010.3
Highly enantio-enriched perfluoroalkyl amines are shown to be synthesized by perfluoroalkylation and asymmetric reduction of nitriles. Perfluoroalkylation of nitriles can be attained by the Lewis acidic perfluoroalkyl titanate reagents to give acyclic ketimines. Catalyticasymmetric hydrogenation of the acyclic ketimines affords the perfluoroalkyl amine products in up to 93% ee.
DIASTEREOSELECTIVE REDUCTION OF PERFLUQROALKYLATED α,β-UNSATURATED KETONES WITH BAKER’S YEAST
作者:Tomoya Kitazume、Nobuo Ishikawa
DOI:10.1246/cl.1984.587
日期:1984.4.5
The differentiation of a fluorinated group in the molecule with active fermenting yeast and the doubleasymmetricinduction in some perfluoroalkylated α,β-unsaturated ketones are described.
描述了具有活性发酵酵母的分子中氟化基团的分化和一些全氟烷基化 α,β-不饱和酮的双重不对称诱导。
Nickel-Catalyzed Alkyl-Alkyl Cross-Couplings of Fluorinated Secondary Electrophiles: A General Approach to the Synthesis of Compounds having a Perfluoroalkyl Substituent
作者:Yufan Liang、Gregory C. Fu
DOI:10.1002/anie.201503297
日期:2015.7.27
to a tertiary carbon atom by using an alkyl–alkyl cross‐coupling. A nickel catalyst derived from NiCl2⋅glyme and a pybox ligand achieves the coupling of a wide range of fluorinated alkyl halides with alkylzinc reagents at roomtemperature. A broad array of functional groups is compatible with the reaction conditions, and highly selective couplings can be achieved on the basis of differing levels of