期刊
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
卷 637, 期 3-4, 页码 397-400出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/zaac.201000397
关键词
Zinc; Carbamates; Carbon dioxide; Insertion reactions; Amides
资金
- Deutsche Forschungsgemeinschaft (DFG, Bonn-Bad Godesberg, Germany)
- Jena Graduate Academy of the Friedrich-Schiller-Universitat of Jena (Germany)
Exposure of a THF solution of bis(methylzinc) tert-butylamide bis(2-pyridylmethyl)amide (1) to a carbon dioxide atmosphere leads to formation of dimeric methylzinc bis(2-pyridylmethyl) carbamate (2). The preparation of 2 from 1 and CO2 is a two-step reaction and affords ligand redistribution after insertion of CO2 into the Zn-N bonds. The central structural fragment is an eight-membered (ZnO2C)(2) ring with tetracoordinate zinc atoms and planar C2N-CO2 carbamate units in a boat conformation.
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