公开(公告)号：DE4424294A1

公开(公告)日：1996-01-11

申请号：DE4424294

申请日：1994-07-09

Applicant: BASF AG

Inventor： DOBLER WALTER DR ,  KRAUSE WOLFGANG DR ,  PAUST JOACHIM DR ,  WOERZ OTTO DR ,  RHEUDE UDO DR ,  BURST WOLFRAM ,  DAEUWEL GUENTER ,  BERTRAM ARMIN ,  SCHULZ BERNHARD DR ,  WEGNER GUENTER DR

IPC: A23L5/40 ,  C07B41/04 ,  C07B41/08 ,  C07C45/72 ,  C07C67/347 ,  C07C291/04 ,  C07C403/14 ,  C07C403/20 ,  C07D207/46 ,  C07D211/94 ,  C07D263/04 ,  C07D521/00 ,  C09B23/01

Abstract: Prodn. of polyenecarbonyl cpds. (I) having high all-E content, and their acetals and ketals, comprises reacting a carbonyl cpd. (II) with a dialkyl phosphonate in a Horner-Emmons reaction or with a CH-acidic cpd. in an aldol condensation in the presence of 0.3-10 mol.% (based on (II)) of a component (B) comprising a) oxygen or nitrogen monoxide (opt. mixed with an inert gas); b) the stable 2,2-diphenyl-1-picrylhydrazyl radical or a hydrogen peroxide-urea adduct; c) quinone, a quinone deriv. or coenzyme Q10 hydroquinone; and/or d) a stable radical of formula (I) or (II). R1, R2 = 1-4C alkyl; or R1+R2 = ethylene, propylene, vinylene or propenylene (all opt. substd. by alkyl, aryl, OH, alkoxy, silyloxy, oxo, NH2, SH, alkylthio, CN, COOH, carbamoyl, heteroaryl or alkylcarbonyloxy); R3-R5 = as R1, R2.

公开(公告)号：DE59500893D1

公开(公告)日：1997-12-04

申请号：DE59500893

申请日：1995-06-30

Applicant: BASF AG

Inventor： DOBLER WALTER DR ,  KRAUSE WOLFGANG DR ,  PAUST JOACHIM DR ,  WOERZ OTTO DR ,  RHEUDE UDO DR ,  BURST WOLFRAM ,  DAEUWEL GUENTER ,  BERTRAM ARMIN ,  SCHULZ BERNHARD DR ,  WEGNER GUENTER DR ,  MUENSTER PETER DR ,  ERNST HANSGEORG DR ,  KOCHNER ARNO ,  ETZRODT HEINZ DR

IPC: C07C51/16 ,  C07C403/00 ,  C07C403/20