申请人:Hoffmann-La Roche Inc.
公开号:US03941841A1
公开(公告)日:1976-03-02
A method by which rhodoxanthin can be synthesized from 3-ethylenedioxy-.beta.-ionone as well as new and novel intermediates produced in the synthesis. Rhodoxanthin is a well-known coloring agent for foodstuffs, including beverages, pharmaceutical and cosmetic preparations.
一种从3-乙二氧基-β-离子酮合成红黄素的方法,以及在合成过程中产生的新颖中间体。红黄素是一种著名的食品色素,包括饮料、制药和化妆品制剂。