Method for producing 3,7-dimethyl-5,7-octadiene-1-ol or rose oxi

Details Method for producing 3,7-dimethyl-5,7-octadiene-1-ol or rose oxi Method for producing 3,7-dimethyl-5,7-octadiene-1-ol or rose oxi

Filed on

1996-08-29

Date issued

1997-09-30

Examiner

Ivy, C. Warren

Patent Class

Organic compounds -- part of the class 532-570 series

SubClass

Organic compounds

SubSubClass

Oxygen containing

Other Related Categories

549356, C07C 2960

Type

Patent

Status

active

Patent number

056727836

Description

ABSTRACT:
Simple methods for producing 3,7-dimethyl-5,7-octadiene-1-ol and rose oxide are disclosed. Each of the methods comprises only one step in which the raw material, 3,7-dimethyl-6-hydroxy-7-octene-1-ol is dehydrated or further cyclized by heating while stirring at 80.degree. to 160.degree. C. in the presence of a zero-valent or divalent phosphine-palladium complex, or a combination of zero-valent or divalent palladium and a phosphorous compound having coordinating capabilities such as the combination of palladium acetate and triphenylphosphine. The methods give high yields and have cost saving characteristics.

REFERENCES:
patent: 4312717 (1982-01-01), Suzukamo et al.
patent: 4340544 (1982-07-01), Suzukamo et al.

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