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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 130, Issue 44, Pages 14438-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja806635x
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The methylidene scandium complex (PNP)Sc(mu(3)-CH2)(mu(2)-CH3)(2)[Al(CH3)(2)](2) (PNP=N[2-P(CHMe2)2-4-methylpheyl](2)(-)) can be prepared from the reaction of (PNP)Sc(CH3)(2) and 2 equiv of Al(CH3)(3). The Lewis acid stabilized methylidenes candium complex has been crystallographically characterized, and its bonding scheme analyzed by DFT. In addition, we report preliminary reactivity studies of the Sc-CH2 ligand with substrates such as H2NAr and OCPh2. While the former results in an Bronsted acid-base reaction, the latter reagent produces the olefin H2C-CPh2 along with the novel oxoscandium complex (PNP)Sc(mu(3)-O)(mu(2)-CH3)(2)[Al(CH3)(2)](2), quantitatively.
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