Process for producing fitol, a derivative of fiteno, isofitol, a derivative of isofiteno, or a mixture thereof, composed of epoxifitila substituu00ecdo, composed of fiteno substituu00ecdo,The process for producing the same, process for producing alpha tocopherol and process for coverter geranilgeraniol alpha tocopherol.

摘要

"Process to produce fitol, a derivative of fiteno, isofitol, a derivative of isofiteno, or a mixture thereof, composed of epoxifitila substituu00ecdo, composed of fiteno substituu00ecdo,The process for producing the same, process for producing alpha tocopherol and process for converting geranilgeraniol alpha tocopherol.The invention provides processes for the production of fitol, isofitol,And certain derivatives of fitol by an oxidation process or epoxidau00e7u00e3o of geranilgeraniol or derivatives of geranilgeraniol to form derivatives of epoxy geranilgeraniol,Reducing or hidrogenando derivatives of epoxy geranilgeraniol to produce epoxifitol derivatives, and then desoxigenando derivatives of epoxifitol to produce fitol, isofitol,Fiteno derivatives, derivatives of isofiteno, or mixtures of the same. The deoxygenation stage is executed in the presence of deoxygenation catalysts, including compounds of rhenium trioxide.The invention also provides processes for the synthesis of certain new compounds of epoxifitila replaced and compounds of fiteno replaced with removable protection groups.The fitol, isofitol, derived from fiteno, derived from isofiteno,Compounds of epoxifitila substituted compounds and fiteno replaced produced are suitable as starting materials for condensation with trimetilidroquinona derivatives.In the presence of Lewis acids to provide derivatives of tocopherol and alpha tocopherol, vitamin E.