Process for preparing triallyl isocyanurate (taic)

Details Process for preparing triallyl isocyanurate (taic) Process for preparing triallyl isocyanurate (taic)

C - Chemistry, Metallurgy

07

D

C07D 251/34 (2006.01)

Patent

CA 2655739

The invention is directed to an improved, reliably performable process for preparing triallyl isocyanurate (TAIC) by Cu2+-catalysed rearrangement of triallyl cyanurate (TAC) at at least 90°C. According to the invention, TAC and, if required, also a Cu2+ catalyst and solvent are fed continuously to a start reaction mixture after onset of the initially inhibited isomerization reaction, the isomerization is performed at from 90 to 160°C and an amount of reaction mixture equivalent to the amount of reactant is drawn off continuously and sent to the workup. Preference is given to effecting the isomerization in TAIC as the reaction medium.

L'invention concerne un procédé amélioré et pouvant être effectué de manière fiable pour la préparation de triallylisocyanurate (TAIC) par réagencement avec un catalyseur Cu2+ de triallylcyanurate (TAC) à au moins 90 °C. Selon l'invention, du TAC et, si nécessaire, également un catalyseur Cu2+ et un solvant sont amenés en continu dans un mélange de réaction de départ après le commencement de la réaction d'isomérisation initialement inhibée, l'isomérisation est effectuée à une température comprise entre 90 et 160 °C et une quantité du mélange de réaction équivalente à celle d'un réactif est prélevée en continu et envoyée au traitement conclusif. De préférence, l'isomérisation est effectuée dans le TAIC en tant que milieu de réaction.

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