发明授权
- 专利标题： Synthesis of tyrosine-derived diphenol monomers
- 专利标题（中）： 酪氨酸衍生的二酚单体的合成
-
申请号： US625763申请日： 1996-03-29
-
公开(公告)号： US5670602A公开(公告)日： 1997-09-23
- 发明人: Joachim B. Kohn , Stephen J. Brocchini , Arthur L. Schwartz
- 申请人： Joachim B. Kohn , Stephen J. Brocchini , Arthur L. Schwartz
- 申请人地址： NJ New Brunswick
- 专利权人： Rutgers, The State University
- 当前专利权人： Rutgers, The State University
- 当前专利权人地址： NJ New Brunswick
- 主分类号： C07C231/02
- IPC分类号： C07C231/02 ; C07C235/34 ; C08G63/685 ; C08G64/12 ; C08G69/44 ; C08G63/00 ; C07C229/00
摘要：
A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with a L-tyrosine ester in a water-miscible organic reaction solvent containing a carbodiimide capable of forming a water-soluble urea by-product, thereby forming a diphenol reaction product; and combining the reaction mixture with an amount of water effective to precipitate the diphenol as a water-immiscible organic phase, so that a water-immiscible organic phase is formed containing the diphenol reaction product. New diphenol monomers and polymers polymerized therefrom are also disclosed.
公开/授权文献
信息查询
