Cyclic urea compounds and preparation thereof

Details Cyclic urea compounds and preparation thereof Cyclic urea compounds and preparation thereof

2007-03-06

2007-03-06

Tucker, Zachary C. (Department: 1624)

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

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C540S496000, C540S501000

Reexamination Certificate

active

10311178

ABSTRACT:
A method for preparing cyclic urea compounds from at least an activated carbamic acid derivative containing an unprotected primary or secondary amine function, includes a cyclization step which consists in a reaction between the primary or secondary amine function and the carbamic acid function of the carbamic acid derivative(s).

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