发明授权
US07199272B2 Method for preparing para-(2-hydroxyalkyloxy) styrene monomers and oligomers
失效
对 - （2-羟基烷氧基）苯乙烯单体和低聚物的制备方法
- 专利标题： Method for preparing para-(2-hydroxyalkyloxy) styrene monomers and oligomers
- 专利标题（中）： 对 - （2-羟基烷氧基）苯乙烯单体和低聚物的制备方法
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申请号： US11057589申请日： 2005-02-14
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公开(公告)号： US07199272B2公开(公告)日： 2007-04-03
- 发明人: Samuel David Arthur , Keith Kunitsky , Barry M. Trost , Mark E. Wagman
- 申请人： Samuel David Arthur , Keith Kunitsky , Barry M. Trost , Mark E. Wagman
- 申请人地址： US DE Wilmington
- 专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 主分类号： C07C41/03
- IPC分类号： C07C41/03
摘要：
A method for preparing p-(2-hydroxyalkyloxy)styrene monomers and oligomers is described. The method comprises a base-catalyzed reaction of a styrene ester, a suitable alcohol and an alkylene oxide in a single vessel reaction. In this method, the reactive p-hydroxystyrene is generated in situ via the base-catalyzed transesterification reaction between the styrene ester and the alcohol in the presence of the base catalyst. The p-hydroxystyrene formed reacts with the alkylene oxide to form the p-(2-hydroxyalkyloxy)styrene monomer or oligomer.