A Highly Efficient Chain-Extension Process in the Systematic Syntheses of Carotenoid Natural Products This work was supported by the RRC program of MOST and KOSEF.
A PROCESS FOR PREPARING CAROTENOID POLYENE CHAIN COMPOUNDS AND INTERMEDIATES FOR PREPARING THE SAME
申请人:Koo, Sangho
公开号:EP1283826B1
公开(公告)日:2008-03-26
EP1283826A4
申请人:——
公开号:EP1283826A4
公开(公告)日:2005-11-23
US6747166B2
申请人:——
公开号:US6747166B2
公开(公告)日:2004-06-08
[EN] A PROCESS FOR PREPARING CAROTENOID POLYENE CHAIN COMPOUNDS AND INTERMEDIATES FOR PREPARING THE SAME<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES CAROTENOIDES A CHAINE POLYENE ET INTERMEDIAIRES PERMETTANT DE PREPARER CES COMPOSES
申请人:KOO SANGHO
公开号:WO2001064630A1
公开(公告)日:2001-09-07
The present invention provides an intermediate compound used for synthesis of polyene chain structure, that is an important moiety of carotenoid compounds, a process for preparing the same, and carotenoid polyene chain compounds prepared by using the intermediate, and, in particular, a process for preparing lycopene. The process for preparing the carotenoid polyene chain compound employs an allylic sulfone compound as starting material, which is reacted with C-5 sulfide compound to extend the carbon chain. The resultant thio-sulfone compound is oxidized, and the obtained disulfone compound is combined with C-10 di(haloallylic) sulfide compound to form a chain compound containing the desired number of carbon atoms. Then, the diallylic sulfone obtained by oxidation of the diallylic sulfide is subjected to Ramberg-Baklund reaction in order to form the central triene bond. After removal of sulfonyl groups, carotenoid polyene chain compound is obtained.