Journal
ORGANOMETALLICS
Volume 28, Issue 19, Pages 5809-5813Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om900677v
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- University of Hawaii
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The synthesis of the new well-defined and air-stable complex (SIPr)Pd(acac)Cl (SIPr = 1,3-bis(2,6-diisopropylpheiiyl)imidazolin-2-ylidene) is described, and the catalytic activity of this new complex has been tested in the alpha-arylation of ketones and in Buchwald-Hartwig amination reactions. The significant differences in catalytic performance when compared to the previously reported, unsaturated counterpart (IPr)Pd(acac)Cl (IPr = 1,3-bis(2,6-diisopropylplienyl)imidazol-2-ylidene) are discussed by means of X-ray crystallography and on the basis of their varying solution dynamics, observed by H-1 NMR spectroscopy.
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