This work was partly supported by a Grant-in-aid for Scientific Research (S) (No. 21225004) from the Ministry of Education, Culture, Sports, Science and Technology of Japan and the Key Project of International Cooperation of NSFC (20920102030). We thank Dr. H. Koshino for assistance with 11B NMR measurements.
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Communication
Rare Earth Metal Boryl Complexes: Synthesis, Structure, and Insertion of a Carbodiimide and Carbon Monoxide†
Article first published online: 13 MAY 2011
DOI: 10.1002/anie.201101107
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Li, S., Cheng, J., Chen, Y., Nishiura, M. and Hou, Z. (2011), Rare Earth Metal Boryl Complexes: Synthesis, Structure, and Insertion of a Carbodiimide and Carbon Monoxide. Angew. Chem. Int. Ed., 50: 6360–6363. doi: 10.1002/anie.201101107
- †
Publication History
- Issue published online: 30 JUN 2011
- Article first published online: 13 MAY 2011
- Manuscript Received: 14 FEB 2011
Funded by
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- NSFC. Grant Number: 20920102030
Keywords:
- boron;
- boryl ligands;
- insertion;
- lanthanides;
- scandium
Among the first of their kind: Scandium boryl complex 1 and its Gd analogue were prepared by reaction of a boryl lithium compound with [Ln(CH2SiMe3)2(THF)x][BPh4] (Ln=Sc, Gd). Reaction of 1 with N,N′-diisopropylcarbodiimide gave bis(amidinate) complex 2, which affords 3 by double CO insertion into the Sc![[BOND]](http://onlinelibrarystatic.wiley.com/undisplayable_characters/00f8ff.gif)
B bond, nucleophilic addition of an amidinate, and migration of the SiMe3 to the resulting ketene moiety (see scheme).