Aluminium-catalysed isocyanate trimerization, enhanced by exploiting a dynamic coordination sphere

Main-group metals are inherently labile, hindering their use in catalysis. We exploit this lability in the synthesis of isocyanurates. For the first time we report a highly active catalyst that trimerizes alkyl, allyl and aryl isocyanates, and di-isocyanates, with low catalyst loadings under mild co...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-07, Vol.55 (53), p.7679-7682
Main Authors: Bahili, Mohammed A, Stokes, Emily C, Amesbury, Robert C, Ould, Darren M. C, Christo, Bashar, Horne, Rhian J, Kariuki, Benson M, Stewart, Jack A, Taylor, Rebekah L, Williams, P. Andrew, Jones, Matthew D, Harris, Kenneth D. M, Ward, Benjamin D
Format: Article
Language:English
Subjects:
Aluminum
Aromatic compounds
Cartesian coordinates
Catalysis
Catalysts
Crystallography
Isocyanates
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Summary:Main-group metals are inherently labile, hindering their use in catalysis. We exploit this lability in the synthesis of isocyanurates. For the first time we report a highly active catalyst that trimerizes alkyl, allyl and aryl isocyanates, and di-isocyanates, with low catalyst loadings under mild conditions, using a hemi-labile aluminium-pyridyl-bis(iminophenolate) complex. The lability of aluminium is exploited to give a highly effective catalyst for the trimerization of isocyanates.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc03339d