Title:
REMOVAL OF CERTAIN KIND OF ISOPRENE TRIMER FROM ISOPRENE TRIMER MIXTURE
Document Type and Number:
Japanese Patent JPS59163326
Kind Code:
A
Abstract:
A process for removing from a mixture of isoprene trimers compounds of the formula by reacting a mixture of cyclic and linear trimers with a compound having an activated carbon atom, of the formula: X-CH2-Y in which one of X or Y is an electron-withdrawing group and the other is an electron-withdrawing or electron-donating group, in the presence of a catalyst consisting of a water-soluble phosphine and a rhodium compound, the reaction being carried out in water or in a water-alcohol medium, and separating the cyclic trimers and linear trimers containing the chain from the mixture of products of the formulae: and which can be used, in particular, in the synthesis of vitamin E.
Inventors:
DEIDEIE MORERU
Application Number:
JP3154584A
Publication Date:
September 14, 1984
Filing Date:
February 23, 1984
Export Citation:
Assignee:
RHONE POULENC SANTE
International Classes:
C07C1/00; C07C7/148; C07C7/152; C07C69/738; C07C11/21; C07C13/277; C07C45/62; C07C45/67; C07C49/04; C07C49/203; C07C67/00; F16L1/00; F16L41/02; (IPC1-7): C07C7/148; C07C11/21; C07C13/277
Domestic Patent References:
| JPS5745111A | 1982-03-13 |
Attorney, Agent or Firm:
Heikichi Odashima