title: Geminal silicon/zinc reagent as an equivalent of difluoromethylene bis-carbanion.
abstract: A new difluorinated reagent, [difluoro(trimethylsilyl)methyl]zinc bromide, bearing C-Zn and C-Si bonds is described. The reagent is conveniently prepared by cobalt-catalyzed halogen/zinc exchange. It can be coupled with two different C-electrophiles in a stepwise manner (with allylic halides for C-Zn bond and aldehydes for C-Si bond) affording products containing a difluoromethylene fragment.
authors.affiliation: N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47, 119991 Moscow, Russian Federation.
authors.forename: Mikhail D
authors.initials: MD
authors.lastname: Kosobokov
authors.forename: Vitalij V
authors.initials: VV
authors.lastname: Levin
authors.forename: Artem A
authors.initials: AA
authors.lastname: Zemtsov
authors.forename: Marina I
authors.initials: MI
authors.lastname: Struchkova
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Korlyukov
authors.forename: Dmitry E
authors.initials: DE
authors.lastname: Arkhipov
authors.forename: Alexander D
authors.initials: AD
authors.lastname: Dilman