Preparation of cyclic urea derivatives

Details Preparation of cyclic urea derivatives Preparation of cyclic urea derivatives

1998-09-28

2000-08-15

Shah, Mukund J.

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

Organic compounds

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

540492, 544298, 544302, 544305, 544309, 544310, 544314, 544315, 544318, 5483164, 5483167, 5483175, 5483255, 5483261, C07D23334, C07D23340, C07D23910, C07D24902, C07D24304

Patent

active

061038989

ABSTRACT:
Cyclic urea derivatives of the formula I ##STR1## in which X, X', Y, Y' and Z can have various meanings, are prepared by a) reacting a urea derivative of the formula II ##STR2## with a diketone of the formula III ##STR3## and b) hydrogenating the product from step a) in the presence of a metal-containing catalyst.

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