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Title:
PREPARATION METHOD FOR UNSATURATED CYCLIC ALCOHOLS
Document Type and Number:
Japanese Patent JP2002322103
Kind Code:
A
Abstract:

To obtain the corresponding unsaturated cyclic alcohols at a high conversion rate and with a high selectivity from unsaturated cyclic aldehydes possessing unsaturated bonds within a cyclic group.

In the presence of a catalyst containing at least one species of metals selected from the group III, IV, IX, XIII and XIV of the periodic table and a secondary alcohol the corresponding unsaturated cyclic alcohol compound is prepared by reducing selectively the formyl group of the unsaturated cyclic aldehydes without reducing the unsaturated carbon - carbon bonds. As the unsaturated cyclic aldehydes, C5-16 mono- or tri-cyclo-alkenecarbaldehyde and the like can be employed. The reduction reaction may be carried out at 40-120°C and under the hydrogen gas pressure of roughly 0.01-5 MPa.


Inventors:
NISHIYAMA SATORU
TANAKA YASUTAKA
Application Number:
JP2001132080A
Publication Date:
November 08, 2002
Filing Date:
April 27, 2001
Export Citation:
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Assignee:
DAICEL CHEM
International Classes:
C07C29/14; C07B61/00; C07C33/05; C07C33/14; (IPC1-7): C07C29/14; C07C33/05; C07C33/14
Attorney, Agent or Firm:
Mitsuo Hokita