公开(公告)号：US20220064099A1

公开(公告)日：2022-03-03

申请号：US17415378

申请日：2019-12-20

申请人： Cytec Industries Inc.

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

IPC分类号： C07C209/84

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 R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization each R1, of epoxy compounds, and R11 is H or (C1-C6)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.

公开(公告)号：US20230278948A1

公开(公告)日：2023-09-07

申请号：US18315392

申请日：2023-05-10

申请人： Cytec Industries Inc.

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

IPC分类号： C07C209/84

CPC分类号： C07C209/84

摘要： 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 R1, R2, R3, R4, R12, and R13 is independently a group that is inert in the polymerization of epoxy compounds, and R11 is H or (C1-C6)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 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.