We thank Prof. J. Shimoyama (The University of Tokyo) for magnetic susceptibility measurements and his valuable discussion. This work was supported by the global COE program (GCOE) “Chemistry Innovation through Cooperation of Science and Engineering”, the Ministry of Education, Culture, Science, Sports, and Technology of Japan (MEXT) (Japan), and the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program)“ of the Japan Society for the Promotion of Science (JSPS).
Reactive N-Protonated Isocyanate Species Stabilized by Bis(μ-hydroxo)divanadium(IV)-Substituted Polyoxometalate†
Article first published online: 26 JUN 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 51, Issue 31, pages 7715–7718, July 27, 2012
How to Cite
Uehara, K., Fukaya, K. and Mizuno, N. (2012), Reactive N-Protonated Isocyanate Species Stabilized by Bis(μ-hydroxo)divanadium(IV)-Substituted Polyoxometalate . Angew. Chem. Int. Ed., 51: 7715–7718. doi: 10.1002/anie.201108205
- Issue published online: 25 JUL 2012
- Article first published online: 26 JUN 2012
- Manuscript Revised: 17 APR 2012
- Manuscript Received: 22 NOV 2011
- Ministry of Education, Culture, Science, Sports, and Technology of Japan (MEXT)
- Japan Society for the Promotion of Science (JSPS)
O- or N-protonated? The bis(μ-hydroxo)divanadium(IV)-substituted γ-Keggin-type polyoxometalate (see picture, left) (TBA)4[γ-SiVIV2W10O36(μ-OH)4] (TBA=tetra(n-butyl)ammonium) was synthesized and characterized by X-ray crystallography. Its reaction with phenyl isocyanate gave (TBA)4[γ-SiVIV2W10O38(μ-OH)2(PhNHCO)2], which contains two N-protonated phenyl isocyanate species and catalyzes the cyclotrimerization of phenyl isocyanate.