Title:
METHOD FOR PRODUCING 5-ARYLPENTANOL
Document Type and Number:
Japanese Patent JP3881288
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a 5-arylpentanol useful as a perfume or as a synthetic intermediate for medicines, agrochemicals, and the like, from a pyran compound.
SOLUTION: This method for producing the 5-arylpentanol represented by the general formula (2) (R1 is an aryl which may be substituted with one or more alkyl or alkoxy groups and has totally 6 to 12 carbon atoms; R3 is H or a 1 to 6C alkyl or alkenyl; R4 is R2 when R2 is a monovalent group, or R2H when R2 is a divalent group; R2 is H, a 1 to 6C alkyl or alkenyl, or a 1 to 6C alkylidene or alkenylidene) comprises carrying out the hydrogenolysis reaction of the pyran compound represented by formula (1) (one of the dotted bonds is a double bond) in the presence of one or more catalysts selected from those each carrying two or more elements selected from noble metals in the group VIII of the periodic table, and acidic type palladium-carrying catalysts. The 5-arylpentanol can be produced in a high yield without corroding a production installation, while inhibiting the production of by-products.
Inventors:
Akira Mada
Shigeyoshi Tanaka
Shigeyoshi Tanaka
Application Number:
JP2002169630A
Publication Date:
February 14, 2007
Filing Date:
June 11, 2002
Export Citation:
Assignee:
Kao Corporation
International Classes:
C07C29/10; C07B61/00; C07C29/17; C07C33/20; (IPC1-7): C07C29/10; C07C33/20; //C07B61/00
Foreign References:
| CH655932A3 |
Other References:
J. Am. Chem. Soc.,1948, Vol.70,p.1490-1492
Attorney, Agent or Firm:
Alga Patent Office, a patent business corporation