Аннотация:Efficient routes toward activation of gem-chlorofluorocyclopropane derived (2-fluoroallyl)boronates for allylboration of various ketones including functionalized and low-reactive ones were developed. Increasing of the boron electrophilicity by transformation of boronate moiety into borinic ester with nBuLi/TFAA, makes (2-fluoroallyl)boration of acetyl arenes/hetarenes and aliphatic ketones possible with high diastereoselectivity. For low-reactive or sterically hindered ketones (e.g. benzophenone, adamantanone), “CuF”-based catalysts were developed — (NHC)CuF·HF and (NHC)CuOTf in the presence of an excess of KHF2 (NHC = IPr, SIPr, Cl2IPr).