4.4 Article

The efficient synthesis of carbodiimides using a titanium imido complex

Journal

TETRAHEDRON
Volume 66, Issue 47, Pages 9182-9186

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2010.09.073

Keywords

Imido; Titanium; Carbodiimide; Urea; Isocyanate; Heterocumulene metathesis

Funding

  1. University of Nottingham University College London
  2. Flexible Foam Research Ltd

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An efficient it synthesis of carbodiimides or ureas from the combination of a titanium imido complex 2 and a range of 12 aryl and aliphatic isocyanates is described Control experiments suggest that carbodimide formation is via heterocumulene metathesis through a transient intermediate eta(2)-ureato-N O metallacycle 8 (C) 2010 Elsevier Ltd All rights reserved

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