公开(公告)号：CA2083653A1

公开(公告)日：1993-06-22

申请号：CA2083653

申请日：1992-11-24

Applicant: BASF AG

Inventor： KLEIN ULRICH ,  BUSCHMANN ERNST ,  MACKENROTH CHRISTIANE

IPC: C07B61/00 ,  C07C29/32 ,  C07C29/44 ,  C07C33/025

Abstract: O.Z. 0050/42925 of the disclosure: A process for preparing alkenols of the formula I R1-CH=CH(CH2)nOH I where R1 is hydrogen or a hydrocarbon radical, and n is an integer from 3 to 15, a) by reacting a phosphonium salt of the formula IIa R1-CH2-P+(C6H5)3X- IIa where X is chlorine, bromine or iodine, with an aldehyde of the formula IIIa or its hemiacetal of the formula IIIb IIIa IIIb or b) by reacting a phosphonium salt of the formula IIb (C6H5)3P+(CH2)n+1OH X- IIb with a aldehyde of the formula IV R1CHO IV in a solvent in the presence of a base, wherein the base is the alkali metal salt of an alcohol and the solvent is an alcohol.