Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 49, Pages 18272-18275Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja4095236
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Funding
- National Science Foundation [CHE-1266281, CHE-1048528]
- Arnold and Mable Beckman Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1048528, 1266281] Funding Source: National Science Foundation
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Reaction of [(IPr)Ni(mu-Cl)](2) (1-Cl; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) with ClMg{CH(SiMe3)(2)}center dot Et2O affords (IPr)Ni{CH(SiMe3)(2)} (2), a two-coordinate Ni(I) alkyl complex. An analogous two-coordinate aryl derivative, (IPr)Ni(dmp) (dmp = 2,6-dimesitylphenyl), can be similarly prepared from Li(dmp) and 1-Cl. Reaction of 2 with alkyl bromides gives the three-coordinate Ni(II) alkyl halide complex (IPr)Ni{CH(SiMe3)(2)}Br. Evidence for a radical mechanism is presented to explain the reaction of 2 with alkyl halides.
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