Process for production of optically active epoxy compound

Details Process for production of optically active epoxy compound Process for production of optically active epoxy compound

C - Chemistry, Metallurgy

07

D

C07D 301/12 (2006.01) B01J 31/22 (2006.01) C07D 303/04 (2006.01) C07D 493/04 (2006.01) C07B 53/00 (2006.01) C07B 61/00 (2006.01)

Patent

CA 2680425

[PROBLEMS] To provide a process for producing an optically active epoxy compound. [MEANS FOR SOLVING PROBLEMS] Disclosed is an industrially useful process for producing an optically active epoxy compound. In the reaction between an unsaturated compound and an oxidizing agent in the presence of an optically active titanium-salen complex, an optically active titanium-salalen complex or an optically active titanium-salan complex, it is found that the addition of a buffering agent or a buffer solution to the reaction system enables to reduce the decomposition of the catalyst, reduce the amount of the catalyst used, and reduce the production of a by-product compared to a conventional process, and can produce a high-quality, optically active epoxy compound in high chemical yield and with high optical purity.

L'invention a pour objet un procédé de production d'un composé époxy opto-actif. La solution proposée est un procédé à applicabilité industrielle permettant de produire un composé époxy opto-actif. On a constaté que lors de la réaction entre un composé insaturé et un agent oxydant en présence d'un complexe titane-salen opto-actif, d'un complexe titane-salalen opto-actif ou d'un complexe titane-salan opto-actif, l'addition d'un agent tampon ou d'une solution tampon au système réactionnel permet de réduire la décomposition du catalyseur, de réduire la quantité de catalyseur utilisée, et de réduire la production de sous-produit par rapport à un procédé conventionnel, et permet de produire un composé époxy opto-actif de haute qualité, avec un rendement chimique élevé et une haute pureté optique.

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