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METHOD FOR PRODUCING OPTICALLY ACTIVE ISOPULEGOL AND OPTICALLY ACTIVE MENTHOL
METHOD FOR PRODUCING OPTICALLY ACTIVE ISOPULEGOL AND OPTICALLY ACTIVE MENTHOL
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机译:制备光学活性的异薄荷醇和光学活性的薄荷醇的方法
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摘要
The purpose of the present invention is to provide a method for producing optically active isopulegol and optically active menthol which makes it possible to reduce production expenses and minimize environment-polluting waste. The present invention makes it possible to obtain optically active isopulegol with high yield and high selectivity by: obtaining optically active citronellal by asymmetrically isomerizing geraniol and/or nerol using a specific optically active ruthenium catalyst, and performing a selective ring-closing reaction of the optically active citronellal by using an aluminum catalyst obtained by mixing an aluminum alkyl compound and a specific hydroxy compound.
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