公开(公告)号：CA2121250A1

公开(公告)日：1993-04-29

申请号：CA2121250

申请日：1992-09-24

Applicant: BASF AG

Inventor： KLEIN ULRICH ,  NEUMANN ULRICH ,  MACKENROTH WOLFGANG ,  RENZ GUENTER ,  KRIEG WOLFGANG ,  MACKENROTH CHRISTIANE ,  BUSCHMANN ERNST ,  DEKRAMER JACOBUS J ,  MILLI ROLAND ,  DEKRAMER JACOBUS J

IPC: C07C29/10 ,  A01N31/04 ,  A01N49/00 ,  C07C29/60 ,  C07C29/62 ,  C07C33/02 ,  C07C41/48 ,  C07C41/54 ,  C07C43/178 ,  C07C43/313 ,  C07C43/315 ,  A01N31/02

Abstract: A process is disclosed for preparing a mixture of 8E,10E-dodecadienol (Ia), 8E,10Z-dodecadienol (Ib), 8Z,10E-dodecadie- nol (Ic) and 8Z,10Z-dodecadienol (Id), H3C-CH=CH-CH=CH-(CH2)6-CH2-OH, (8E,10 E = Ia), (8E,10Z = Ib), (8Z,10E = Ic), (8Z,10Z = Id) from 1,8-octandiol (II) which is transformed by a halogenating agent into (III): Hal- CH2-(CH2)6-CH2-OH, (III) is then reacted with (IV): H2C = CH-O-R, producing (V): Hal-CH2-(CH2)6-CH2-O- CH(CH3)-OR, which is transformed in the presence of magnesium with crotonaldehyde into (VI): H3C-CH = CH- CH(OH)-(CH2)8-O-CH(CH3)-OR. The alcohol protective group is split off from (VI) in the presence of an acid, at the same time as the hydroxyl function is eliminated. Also disclosed are intermediate s for this process, and a process for fighting the fruit surface eating tortrix moth Cydia pomonella with this mixture accordin g to the mating interruption method.