A phenol, a formaldehyde and an unsaturated compound having carbon-carbon double bond are reacted in the presence of a secondary amine and an acid at a temperature of 100.degree. to 250.degree. C., to give a chroman.
[EN] SYNTHESIS OF TOCOTRIENOLS FROM O-CRESOL DERIVATIVES<br/>[FR] SYNTHÈSE DE TOCOTRIÉNOLS À PARTIR DE DÉRIVÉS DE O-CRÉSOL
申请人:ANTHEM BIOSCIENCES PRIVATE LTD
公开号:WO2019053605A1
公开(公告)日:2019-03-21
The present invention provides an environmentally benign, facile process for preparation of Tocotrienols from commercially available derivatives of o-Cresol.