公开(公告)号：DE19907532A1

公开(公告)日：2000-08-31

申请号：DE19907532

申请日：1999-02-22

Applicant: BASF AG

Inventor： BRUNNER MELANIE ,  HENKELMANN JOCHEM ,  KAIBEL GERD ,  KINDLER ALOIS ,  KNOLL CHRISTIAN ,  RUST HARALD ,  TRAGUT CHRISTIAN

IPC: C07C29/17 ,  C07C29/42 ,  C07C29/74 ,  C07C31/18 ,  C07C33/044

Abstract: The invention relates to a method for preparing at least one unsaturated alcohol (B). The method comprises the following steps (I) to (III): (I) reaction of at least one alkali or alkaline earth hydroxide with at least one alcohol (A) in at least one organic solvent (L) so that a mixture (G-I) is obtained which contains at least the alcohol (A), the solvent (L) and an alcoholate (AL); (II) reaction of at least one carbonyl compound of the general structure R-CO-R' with at least one alkine of the general structure R"-CC-H and the mixture (G-I) obtained in step (I) above, so that a mixture (G-II) is obtained which contains at least the alcohol (A), the solvent (L) and an unsaturated alcohol (B); and (III) distillation of the mixture (G-II) obtained in step (II) above so that the at least one alcohol (B) and a mixture (G-III) containing the solvent (L) and the alcohol (A), are obtained. Said method is characterized in that the solvent (L) and the alcohol (A) obtained in step (III) are fed back to step (I) as a mixture.