Intermediate phenolic compounds for the catalytic synthesis of chromans
申请人:Hoffmann-La Roche Inc.
公开号:US04598160A1
公开(公告)日:1986-07-01
A catalytic synthesis of chromans in racemic or optically active forms, including intermediates thereto; the synthesis employs an asymmetric palladium (II) catalyzed oxidative cyclization of a 2-homoallylphenol and provides intermediates useful in making chromans, especially vitamin E in racemic or optically active forms.