公开(公告)号：WO2020132406A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/067775

申请日：2019-12-20

申请人： CYTEC INDUSTRIES INC.

发明人： MEEGAN, Jonathan, E. ,  MARUANI, Victor ,  SCHANEN, Vincent ,  CROSS, Paul

IPC分类号： C07C209/24 ,  C07C211/52

摘要： The present invention is directed to a method for making a di(aminoaryl)fluorene compound that includes the steps of: (a) reacting a fluorenone compound according structure (I) with excess aminobenzene according to structure (II) wherein: each R 1 , R 2 , R 3 , R 4 , R 12 , and R 13 is independently a group that is inert in the polymerization of epoxy compounds, and R 11 is H or (C 1 -C 6 )alkyl, in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150°C and in the presence of an acid catalyst, in a liquid medium comprising an aromatic or substituted aromatic solvent having a boiling point of greater than or equal to 150°C and from which the di(aminoaryl)fluorene compound is crystallizable, to form a crude product mixture comprising the di(aminoaryl)fluorene compound, (b) crystallizing di(aminoaryl)fluorene compound in the product mixture, and (c) separating the product mixture into crystallized di(aminoaryl)fluorene compound and a filtrate.