公开(公告)号：DE10140180A1

公开(公告)日：2003-03-06

申请号：DE10140180

申请日：2001-08-22

Applicant: BASF AG

Inventor： GRIMMER JOHANNES G ,  MUELLER THOMAS ,  BOMM VOLKER

IPC: C07B35/02 ,  C07C45/62 ,  C07C49/713 ,  C07C49/743 ,  C07C403/02 ,  C07C403/08 ,  C07D317/44 ,  C07D317/46 ,  C07D317/50 ,  C07D317/64

Abstract: Dithionite salts or hydroxymethanesulfinate salts are used as reducing agents in a method for the production of cyclohexene derivatives substituted with a penta-1,3-dienyl or penta-1,4-dienyl group by selective reduction of the corresponding pent-3-en-1-ynyl or pent-4-en-1-ynyl compound. Method for the production of cyclohexene derivatives of formula (I) or (II), which comprises reduction of alkyne compounds of formula (III) or (IV) with a reducing agent selected from salts of dithionous acid and/or hydroxymethanesulfinic acid. R = a group of formula (A), (B), (C) or (D); R = OH or a protecting group which can be converted into a hydroxyl group by hydrolysis; R , R = H or 1-4C alkyl; and R = H or 1-4C acyl.