Method for producing 3,7-dimethyl-5,7-octadiene-1-ol or rose oxide
AssigneeTakasago International Corporation
InventorsHiroyuki Matsuda, Takeshi Yamamoto
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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.
Claims4
A method for producing 3,7-dimethyl-5,7-octadiene-1-ol having the chemical formula:
- ##STR8## characterized in that 3,7-dimethyl-6-hydroxy-7-octene-1-ol having the chemical formula:
- ##STR9## is dehydrated in the presence of a zero-valent or divalent phosphine-palladium complex.
Dependencies are inferred from the claim text.