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公开(公告)号:US20180361369A1
公开(公告)日:2018-12-20
申请号:US15781334
申请日:2016-11-11
申请人: ST PHARM CO., LTD.
发明人: Geun Jho Lim , Sun Ki Chang , Hyun Woo Baek , Jun Hyun Oh , Yeong Hun Kim
摘要: The present disclosure provides a method for preparing ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine), a ligand for a polyketone polymerization catalyst, under mild conditions with high purity and high yield. Therefore, the preparation method of the present disclosure can be easily applied to mass production.
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公开(公告)号:US10702859B2
公开(公告)日:2020-07-07
申请号:US15781334
申请日:2016-11-11
申请人: ST PHARM CO., LTD.
发明人: Geun Jho Lim , Sun Ki Chang , Hyun Woo Baek , Jun Hyun Oh , Yeong Hun Kim
摘要: The present disclosure provides a method for preparing ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine), a ligand for a polyketone polymerization catalyst, under mild conditions with high purity and high yield. Therefore, the preparation method of the present disclosure can be easily applied to mass production.
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