申请人:Yamamoto Tetsuya
公开号:US20090216039A1
公开(公告)日:2009-08-27
Provided that a method for inexpensively producing optically active α-ionone with a high yield and a high asymmetric yield and with good workability in a short process, and a perfume composition comprising the optically active α-ionone obtained by the aforementioned method. A method for producing optically active α-ionone, comprising allowing α-ionone as a mixture of optical isomers to react with an esterification agent, and hydrolyzing the obtained α-ionone enol ester; a method for producing optically active α-ionone comprising subjecting α-ionone as a mixture of optical isomers to an asymmetric reduction, allowing the obtained optically active α-ionol to react with an esterification agent to give an optically active α-ionol ester, hydrolyzing the obtained optically active α-ionol ester after purification as necessary, and then oxidizing the obtained optically active α-ionol; and a perfume composition comprising thus obtained optically active α-ionone.
提供一种以低成本高产率和高对映选择性的方法制备光学活性α-离子酮,并在短时间内具有良好的可操作性,以及包括上述方法获得的光学活性α-离子酮的香水组合物。一种制备光学活性α-离子酮的方法,包括将光学异构体混合物α-离子酮与酯化剂反应,并水解所得的α-离子酮烯醇酯;一种制备光学活性α-离子酮的方法,包括将光学异构体混合物α-离子酮进行不对称还原,使得所得的光学活性α-离子醇与酯化剂反应,得到光学活性α-离子醇酯,必要时纯化后水解所得的光学活性α-离子醇酯,然后氧化所得的光学活性α-离子醇;以及包括上述所得光学活性α-离子酮的香水组合物。