| Literature DB >> 19435344 |
Yun Xiong1, Shenglai Yao, Matthias Driess.
Abstract
The unique isolable silanone complex 3 has been synthesized and isolated in 94% yield by the remarkably facile oxygenation of the NHC-silylene precursor 2 featuring a Si(II) atom with unusually high nucleophilicity. The latter precursor is easily accessible by reaction of the stable silylene 1 with the corresponding N-heterocyclic carbene (NHC) at -60 degrees C. The remarkably short Si=O distance of 1.541(2) A in 3 suggests the presence of a betaine-like Si=O pi system with balanced electrostatics.Entities:
Year: 2009 PMID: 19435344 DOI: 10.1021/ja9031049
Source DB: PubMed Journal: J Am Chem Soc ISSN: 0002-7863 Impact factor: 15.419