公开(公告)号：EP0824513B1

公开(公告)日：2000-07-19

申请号：EP96911501.3

申请日：1996-03-29

申请人： RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY

发明人： KOHN, Joachim, B. ,  HOOPER, Kimberly, Ann ,  BROCCHINI, Stephen, J. ,  SCHWARTZ, Arthur, L.

IPC分类号： C07C229/28 ,  C07C229/34 ,  C07C229/48 ,  C08G64/00

CPC分类号： C08G69/44 ,  C07C231/02 ,  C07C235/34 ,  C08G63/6856 ,  C08G64/12

摘要： A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with an 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(公告)号：EP0824513A1

公开(公告)日：1998-02-25

申请号：EP96911501.0

申请日：1996-03-29

申请人： RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY

发明人： KOHN, Joachim, B. ,  HOOPER, Kimberly, Ann ,  BROCCHINI, Stephen, J. ,  SCHWARTZ, Arthur, L.

IPC分类号： C07C231 ,  C07C235 ,  C08G63 ,  C08G64 ,  C08G69

CPC分类号： C08G69/44 ,  C07C231/02 ,  C07C235/34 ,  C08G63/6856 ,  C08G64/12

摘要： A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with an 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.