Title:
PRODUCTION OF 4-(6,6-DIMETHYL-2-METHYLENECYCLOHEXYL)-2-METHYL-2-BUTENAL AND PERFUME COMPOSITION
Document Type and Number:
Japanese Patent JP3133200
Kind Code:
B2
Abstract:
PURPOSE: To obtain the compound useful as a perfume by reaction of readily available or producible θ-cyclohomogeranial as starting material with a propanal alkylimine in the presence of a base followed by hydrolysis with an acid.
CONSTITUTION: y-Cyclohomogeranial of formula 3 is reacted with a propanal alkylimine of formula 2 (R is 1-6C alkyl or alicyclic group) in the presence of a base in an organic solvent followed by hydrolysis in the presence of an acid to obtain the objective compound, 4-(6,6-dimethyl-2-methylenecyclohexyl)-2- methyl-2 butenal of formula 1. The compound of the formula 1 presents amberlike, woody, iononelike, irislike, fruity or floral scent. The other objective sustainable perfume composition contains this compound of the formula 1 as active ingredient. The above production method is an industrially advantageous one because the aimed compound can be obtained only in a single step. By this method, the objective compound can be easily synthesized in a high yield and purity.
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Inventors:
Hiroyuki Watanabe
Tsuneo Kawanobe
Ichiro Watanabe
Tsuneo Kawanobe
Ichiro Watanabe
Application Number:
JP27624793A
Publication Date:
February 05, 2001
Filing Date:
October 07, 1993
Export Citation:
Assignee:
Hasegawa Fragrance Co., Ltd.
International Classes:
A61K8/33; A61Q13/00; C07C403/14; C11B9/00; (IPC1-7): C11B9/00
Domestic Patent References:
| JP61254516A | ||||
| JP50148331A | ||||
| JP438455B1 | ||||
| JP318868B1 |
Attorney, Agent or Firm:
Masaaki Kobayashi