Copper-Mediated Difluoromethylation of Aryl and Vinyl Iodides
作者:Patrick S. Fier、John F. Hartwig
DOI:10.1021/ja301013h
日期:2012.3.28
straightforward method for the cross-coupling of aryl and vinyliodides with a difluoromethyl group generated from readily available reagents to form difluoromethylarenes and difluoromethyl-substituted alkenes. The reaction of electron-neutral, electron-rich, and sterically hindered aryl and vinyliodides with the combination of CuI, CsF and TMSCF(2)H leads to the formation of difluoromethyl-substituted
[EN] DIFLUOROMETHYLATION OF ARYL AND VINYL IODIDES<br/>[FR] DIFLUOROMÉTHYLATION D'IODURES D'ARYLE ET DE VINYLE
申请人:UNIV CALIFORNIA
公开号:WO2013134296A1
公开(公告)日:2013-09-12
Selectively fluorinated molecules are important as materials, pharmaceuticals, and agrochemicals, but their synthesis by simple, mild, laboratory methods is challenging. We report a straightforward method for the cross-coupling of a difluoromethyl group with readily available reagents to form difluoromethylarenes. The reaction of electron-neutral, electronrich, and sterically hindered aryl and vinyl iodides with the combination of Cul, CsF and TMSCF2H leads to the formation of difluoromethylarenes in high yield with good functional group compatibility. This transformation is surprising, in part, because of the prior observation of the instability of CuCF2H.
[EN] PROCESSES FOR FLUORINATION<br/>[FR] PROCÉDÉS DE FLUORATION
申请人:DOW AGROSCIENCES LLC
公开号:WO2020037109A1
公开(公告)日:2020-02-20
The present technology relates to fluorination reactions. Specifically, processes useful for making the fungicide compound, DFT are disclosed. More broadly, also disclosed herein are processes useful for deoxyfluorination at the α-aromatic position of a given compound.
Palladium-Catalyzed Difluoromethylation of Aryl Chlorides and Bromides with TMSCF<sub>2</sub>H
作者:Devin M. Ferguson、Christian A. Malapit、James R. Bour、Melanie S. Sanford
DOI:10.1021/acs.joc.9b00324
日期:2019.3.15
A palladium-catalyzed cross-coupling of arylchlorides/bromides with TMSCF2H is described. Two different catalysts, Pd(dba)2/BrettPhos and Pd(PtBu3)2, are demonstrated and provide a variety of difluoromethylated arenes in good yields.
描述了钯催化的芳基氯化物/溴化物与TMSCF 2 H的交叉偶联。演示了两种不同的催化剂Pd(dba)2 / BrettPhos和Pd(P t Bu 3)2,它们以高收率提供了多种二氟甲基化的芳烃。
SUBSTITUTED IMIDAZOLES
申请人:CHUBB NATHAN ANTHONY LOGAN
公开号:US20070167506A1
公开(公告)日:2007-07-19
This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.