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    • 10. 发明申请
    • Process for the manufacture of tocyl and tocopheryl acylates
    • 制备辛酰基和生育酚酰化物的方法
    • US20060293529A1
    • 2006-12-28
    • US10554885
    • 2004-04-27
    • Werner BonrathLisa Giraudi
    • Werner BonrathLisa Giraudi
    • C07D311/02
    • C07D311/72
    • A process for the manufacture of a tocyl acylate or a tocopheryl acylate comprises reacting tocol or a tocopherol with an acylating agent in the presence of a solid heterogeneous Brönsted acid catalyst, said catalyst being an inorganic Brönsted acid on a solid carrier material which comprises silicon dioxide, titanium dioxide or both silicon dioxide and titanium dioxide, or being an organofunctional polysilonaxe featuring sulpho groups, the solid heterogeneous Brönsted acid catalyst further featuring a BET surface area from about 10 m2/g to about 800 m2/g and a pore volume from about 0.1 ml/g to about 2.0 ml/g. The main commercial form of vitamin E, being (all-rac)-α-tocopheryl acetate, can be manufactured by acylation of (all-rac)-α-tocopherol according to this process.
    • 制备酰基酰化物或生育酚酰基化物的方法包括在固体异质布朗斯台德酸催化剂存在下,将酰基转化成醇或生育酚,所述催化剂是固体载体材料上的无机布朗斯台德酸,其包含二氧化硅 ,二氧化钛或二氧化硅二氧化钛,或者是具有硫酸基的有机官能聚异氰酸酯,该固体异质布朗斯台德酸催化剂还具有约10m 2 / g至约800μm的BET表面积 2 / g,孔体积为约0.1ml / g至约2.0ml / g。 维生素E的主要商业形式是(全脱氧)-α-生育酚乙酸酯,可以通过根据该方法酰化(全 - 外消旋)-α-生育酚来制备。