Process for the preparation of o-aminophenyl derivatives of amin

Details Process for the preparation of o-aminophenyl derivatives of amin Process for the preparation of o-aminophenyl derivatives of amin

1990-10-30

1991-11-26

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 64, 528 76, 528 78, 564 38, 564 50, 564 52, 564163, C08G 1832

Patent

active

050683063

ABSTRACT:
Disclosed herein is a process for the preparation of an o-aminophenyl derivative of a polyalkyleneoxy polyamine which comprises adding a polyalkyleneoxy polyamine to a dispersion or solution of an isatoic anhydride under reaction conditions sufficient to form the corresponding o-aminophenyl derivative. Also disclosed is an o-aminophenyl derivative of a modified polyamine comprising a backbone portion containing at least one polyalkyleneoxy moiety and one or more internal urea, biuret, amide, thiourea, dithiobiuret, or thioamide moieties, and a plurality of o-aminophenyl end groups wherein each o-aminophenyl group is separated from each urea, biuret, amide, thiourea, dithiobiuret, or thioamide moiety by at least one alkylene, cycloalkylene, aralkylene, arylene, or alkyleneoxy moiety with 4-20 carbon atoms, or at least one polyalkyleneoxy moiety containing from 2-50 alkyleneoxy units; as well as prepolymers and polymers prepared therefrom.

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Clark et al., "Isatoic Anhydride. I. Reactions with Primary and Secondary Amines and with Some Amides," 9 J. Org. Chem., 55 (1944).
Staiger et al., "Isatoic Anhydride. IV. Reactions with Various Nucleophiles," vol. 24, pp. 1214-1219 (Sep. 1959).
Staiger et al., "Isatoic Anhydride. III. Reactions with Primary and Secondary Amines," 18 J. Org. Chem., 1427 (1953).

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