Catalytic C-F bond activation of geminal difluorocyclopropanes by nickel(I) complexes via a radical mechanism.
Catalytic C-F bond activation of geminal difluorocyclopropanes by nickel(I) complexes via a radical mechanism.
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DOI：
10.1039/c5cc08950f
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发表时间：
2016-01
影响因子：
4.9
通讯作者：
Jan Wenz;Christoph A. Rettenmeier;H. Wadepohl;L. Gade
中科院分区：
文献类型：
--
作者：
Jan Wenz;Christoph A. Rettenmeier;H. Wadepohl;L. Gade
含NNN-钳形配体的氟化镍（II）配合物催化偕二氟环丙烷的加氢脱醛反应，开环生成相应的单氟烯烃，产率高，Z-选择性高。在相应的化学计量反应中，得到了涉及镍（I）和镍双金属配合物作为关键中间体的自由基基机理的证据。
Nickel(II) fluorido complexes bearing NNN-pincer ligands were found to be catalysts in the hydrodefluorination of geminal difluorocyclopropanes which undergo ring-opening to form the corresponding monofluoroalkenes in good yield and high Z-selectivities. Evidence for a radical based mechanism involving nickel(I) and nickel hydrido complexes as key intermediates was obtained in the corresponding stoichiometric reactions.