Novel 2-halochromans and their coupling to various nucleophiles to produce Vitamin E and as well as novel intermediates for Vitamin E.
小说2-卤代色烷及其与各种亲核试剂的偶联反应,以生产维生素E以及维生素E的新中间体。
Chromanemelonate esters
申请人:Hoffmann-La Roche Inc.
公开号:US04806661A1
公开(公告)日:1989-02-21
Novel 2-halochromans and their coupling to various nucleophiles to produce Vitamin E and as well as novel intermediates for Vitamin E.
小说2-卤代色环及其与各种亲核试剂的偶联,以产生维生素E以及维生素E的新中间体。
2-allylchromans
申请人:Hoffman-La Roche Inc.
公开号:US04824971A1
公开(公告)日:1989-04-25
Novel 2-halochromans and their coupling to various nucleophiles to produce Vitamin E and as well as novel intermediates for Vitamin E.
小说2-卤代色环和它们与各种亲核试剂的偶联,以产生维生素E以及维生素E的新型中间体。
3,4-Dihydro-2,5,7,8-tetramethyl-2H-1-benzopyranderivate und Verfahren zu ihrer Herstellung
申请人:F. HOFFMANN-LA ROCHE & CO.
Aktiengesellschaft
公开号:EP0235510A2
公开(公告)日:1987-09-09
Die Erfindung bezieht sich auf neue 2-Halochromane und ihre Kupplung an verschiedene Nukleophile, wobei Vitamin E oder neue Zwischenprodukte für Vitamin E entstehen.