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Oligotrimerization of hexamethylene diisocyanate by organometallic catalysts

✍ Scribed by S Dabi; A Zilkha

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 226 KB
Volume: 16
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(80)90112-3

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✦ Synopsis

The oligotrimerization of hexamethylene diisocyanate by tributylin oxide (TBTO), Zr(OBu)4, Ti(OBu),, and Pb-naphthenate was studied. For mild reaction conditions, i.e. weak catalyst (TBTO), low catalyst concentration and temperature, the reaction gave selectively the cyclic trimer (I) and not higher oligomers.

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