Fluorine-containing aromatic diamine compound, fluorine-containing diamine compound having protected amino group and production thereof

PURPOSE: To obtain a new fluorine-containing aromatic diamine compound, useful as a raw material for polyimides, polyamides, etc., having various high performances and functions in addition to excellent heat resistance and producible in good yield and its new intermediate. CONSTITUTION: The objective fluorine-containing aromatic diamine compound is expressed by formula I {R f is C n F 2n-1 [(n) is 6-12] and contains one double bond; H of the benzene ring can suitably be substituted; two amino groups may respectively be bound to any of the o-, m- and p-positions with respect to the ester bonds}, e.g. bis(4-aminophenyl) 5-(perfluorononenyloxy)isophthalate and the objective fluorine-containing diamine compound which is its intermediate, expressed by formula II (R 1 is monovalent organic group; R 2 is H or R 1 and R 2 are bivalent organic group; two N atoms are bound to any of the o-, m- and p-positions with respect to the ester bonds) and having the protected amino group, e.g. bis(4-benzyloxycarbonylaminophenyl) 5-(perfluorononenyloxy) isophthalate. This compound expressed by formula I is obtained by subjecting the compound expressed by formula II to the deprotecting reaction. COPYRIGHT: (C)1993,JPO&Japio