期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 132, 期 38, 页码 13108-13110出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja103220s
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资金
- CNRS
- ENS Cachan
Using a geminal dianion as precursor, a nucleophilic scandium carbene complex (2) has been synthesized by salt metathesis on ScCl3(THF)(3) in 52% isolated yield. The X-ray structure as well as an NBO analysis points to a double interaction between the carbon and the scandium atoms. Quantification of the electron density donation from the carbon to the metal center, from both sigma and pi symmetry orbitals, predicts a nucleophilic carbene behavior. Addition of benzophenone on complex 2 results in the formation of the expected alkene derivative and the trapping of a rare, mu(3)-oxo-Sc species via a scandia-Wittig reaction.
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