Title:
【発明の名称】6,10-および6,9-ジメチル-5,10-ウンデカジエニル-2-オンの製造法
Document Type and Number:
Japanese Patent JP2001510177
Kind Code:
A
Abstract:
The present application refers to a process for preparing 6,10- and 6,9-dimethyl-5,10-undecadienyl-2-ones by telomerizing isoprene with alkyl acetoacetates in the presence of a catalyst system containing a transition metal compound catalyst and a phosphorus- or arsenic-containing compound cocatalyst, wherein the process is performed in the presence of a protic additive of the general formulain which:R1, R2, R3 represent an alkyl group with 1 to 9 carbon atoms, branched or unbranched, a cycloalkyl group with 6 to 8 carbon atoms, an aryl group, in particular phenyl, or an arylalkyl group,X(-) represents an inorganic or organic anion,y is 1 or 2,and the beta-ketoester so obtained is saponified and decarboxylated in a manner known per se.
Inventors:
Wilhelm Kaim
Armin Claus
Liner Hahn
Klaus Hootmacher
Armin Claus
Liner Hahn
Klaus Hootmacher
Application Number:
JP2000503044A
Publication Date:
July 31, 2001
Filing Date:
June 17, 1998
Export Citation:
Assignee:
Degussa-Hüls Akchen Gesell Shaft
International Classes:
C07B61/00; C07C45/67; C07C45/69; C07C49/203; C07C67/347; C07C69/738; (IPC1-7): C07C49/203; C07C45/67; C07C45/69
Attorney, Agent or Firm:
Toshio Yano (4 outside)