申请人:Loyola University of Chicago
公开号:US05107030A1
公开(公告)日:1992-04-21
The present invention is an improved method to prepare 2,7-dimethyl-2,4,6-octatrienedial and related derivative compounds. This method of making 2,7-dimethyl-2,4,6-octatrienedial and derivatives thereof includes reacting 2-butenyl-bisphosphonic acid tetraalkyl ester and at least two equivalents of protected pyruvic aldehyde derivative in a nonpolar organic solvent in the presence of an alkali metal hydroxide. Compounds prepared by this invention are useful intermediates in the preparation of carotenoids.
本发明是一种改进的制备2,7-二甲基-2,4,6-辛三烯二醛及其相关衍生物化合物的方法。该制备2,7-二甲基-2,4,6-辛三烯二醛及其衍生物的方法包括在非极性有机溶剂中,在碱金属氢氧化物的存在下,将2-丁烯基双膦酸四烷基酯和至少两当量的保护基丙酮醛衍生物反应。本发明制备的化合物是制备类胡萝卜素的有用中间体。