SYNTHESIS AND TRIMERIZATION OF FLUORINATED TERTIARY CYANATES

Article abstract of DOI:10.1016/S0022-1139(00)85224-0

Monofunctional and bifunctional bis(α,α-trifluoromethyl) cyanates were prepared by reaction of a fluorinated alkoxide with cyanogen bromide or cyanogen chloride.In the synthesis of bifunctional cyanates, the cyanation reaction required sufficient intramolecular separation for independent functional group reactivity.Monofunctional cyanates could be rapidly quantitatively trimerized to cyclic cyanurates by catalytic quantities of AlCl3.Polymerization by trimerization of bifunctional cyanates under identical conditions was not succesful, apparently, due to encasement of the catalyst by the polymer network.