C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 403/00 (2006.01) C07C 51/16 (2006.01) C07C 403/20 (2006.01)
Patent
CA 2153461
A process for preparing polyenecarbonyl compounds having a high all-E content and their acetals or ketals by aldol condensation or Horner-Emmons reaction comprises carrying out the reaction, for the purposes of the preferred formation of a double bond of E configuration and in order to obtain the E configuration of the double bonds in the starting compounds as completely as possible, in the presence of oxygen or an oxygen-inert gas mixture or nit- ric oxide or a nitric oxide-inert gas mixture and/or in the pre- sence of specific stable radicals and/or in the presence of quin- ones or quinone derivatives.
Bertram Armin
Burst Wolfram
Dauwel Gunter
Dobler Walter
Ernst Hansgeorg
Basf Aktiengesellschaft
Robic
LandOfFree
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