Title:
光学活性3,7-ジメチル-6-オクテノールの製造方法
Document Type and Number:
Japanese Patent JP4519255
Kind Code:
B2
Abstract:
Provided is citronellol, which has an elegant rosy fragrance and is extremely useful for fragrance impartation to aromatic articles. A mixture of an alkylamine and isoprene in a molar ratio of from 1:4 to 1:4.5 is subjected to telomerization at 80 to 100 DEG C for 2.5 to 3.5 hours in the presence of an alkyllithium catalyst and/or phenyllithium catalyst to obtain a nerylamine compound containing 2 to 10 wt% alpha -nerylamine compound represented by general formula (4) From this nerylamine compound, citronellol containing 2 to 10 wt% optically active 3,7-dimethyl-7-octenol is produced through the reaction steps of asymmetric isomerization, hydrolysis, and hydrogenation.
Inventors:
Shinya Yamada
Yoshiki Okuda
Yohori Hori
Toshimitsu Hagiwara
Yoshiki Okuda
Yohori Hori
Toshimitsu Hagiwara
Application Number:
JP2000106649A
Publication Date:
August 04, 2010
Filing Date:
April 07, 2000
Export Citation:
Assignee:
Takasago International Corporation
International Classes:
B01J31/12; C07C29/141; C07B61/00; C07C33/025; C07C45/42; C07C209/68; C07C211/21; C11B9/00
Domestic Patent References:
| JP49048610A | ||||
| JP62169741A |
Other References:
Tetrahedron Letters,1972年,No. 39,4009-4012
Journal of the American Chemical Society ,米国,1984年,Vol. 106, No. 18,5208-5217
Journal of the American Chemical Society ,米国,1984年,Vol. 106, No. 18,5208-5217
Attorney, Agent or Firm:
Kanaya
Akira Inoue
Hiroshi Nakamoto
Akira Inoue
Hiroshi Nakamoto