N,N-Substituted 2,4,5-triketoimidazolidines and a process for th

Details N,N-Substituted 2,4,5-triketoimidazolidines and a process for th N,N-Substituted 2,4,5-triketoimidazolidines and a process for th

1975-06-11

1978-07-04

Cockeram, H.S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260 458N, 260287R, 260295D, 260304R, 260305, C07D23396, C08G 1806, C08G 1814

Patent

active

040990079

ABSTRACT:
A process for the preparation of a monomer compound containing a structural unit of the formula ##STR1## wherein one of Q and Q' are independently the group --NH--CO--OR.sup.IV or hydrogen and the other --NH--CO--COOR.sup.V or hydrogen, a urethane or an isocyanate, wherein R.sup.IV and R.sup.V aliphatic or carbocyclic hydrocarbon groups being substituted or unsubstituted group; R and R'" are unsubstituted or monosubstituted aromatic radicals (wherein at least one oxamidic ester and) wherein at least one oxamidic acid ester with the grouping --NH--CO--CO--OR.sup.V, wherein R.sup.V is as defined, is reacted with an isocyanate or an isocyanate forming compound at temperatures of -20.degree. to +280.degree. C in the presence or absence of a catalyst,

REFERENCES:
patent: 3609113 (1971-09-01), Schade et al.
patent: 3661859 (1972-05-01), Patton
patent: 3928376 (1975-12-01), Reese et al.
Patton, Jour. Org. Chem., vol. 32, pp. 383-388, (1967).
Biltz et al. (I), Chem. Abs. 1913, vol. 7, pp. 2574-2575.
Biltz et al. (II) Berichte 1913, vol. 46 pp. 1387-1404.
Stieger, Chem. Abs. 1917, vol. 11, pp. 1137-1138.
DOS 1916932, Reichhold-Albert Chem. A/G (Kraft & Reese) Oct. 5, 1970.

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