Process for the preparation of (thio)hydantoins substituted with

Details Process for the preparation of (thio)hydantoins substituted with Process for the preparation of (thio)hydantoins substituted with

1978-04-19

1979-10-02

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 68, 528 75, 548310, 548313, C08G 1800

Patent

active

041699319

ABSTRACT:
A process for the preparation of an amide-substituted (thio)hydantoin which comprises reacting a primary mono- or poly-amine with an optionally substituted maleic acid amide reacting the resulting product with an organic mono- or poly-iso(thio)cyanate and subsequently cyclizing the resulting product by the action of heat.

REFERENCES:
patent: 3549599 (1970-12-01), Merten
patent: 4089860 (1978-05-01), Merten et al.

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