| abstract |
A PROCESS FOR MAKING N-MONOCHLORO OR BROMO MONOSUBSTITUTED UREA WHERE A UREA RNH-CO-NH2 IS SUSPENDED IN LIQUID WATER AT 0*C.-60*C. AND REACTED WITH FREE CHLORINE OR FREE BROMINE, AT LEAST 2G. ATOM PER MOLE OF UREA, PREFERABLY IN THE PRESENCE OF AN ACID ACCEPTOR SUCH AS ZINC OXIDE; R MAY BE ALKYL HAVING 3 CARBON ATOMS, CYCLOALKYL, ARALKYL, ALKOXYCARBONYL, ARYLOXYCARBONYL OR ACYL. NEW COMPOUNDS OF THE FORMULA RD-NX-CO-NX''H WHERE X AND X'' ARE DIFFERENT AND ARE (1) CHLORO OR BROMO AND (2) HYDROGEN AND RD IS ALKYL OR CYCLOALKYL, 3-15 CARBON ATOMS, OR R1C(O)-, WHERE R1 IS ALIPHATIC, CYCLOALIPHATIC, ARYL, ALKOXY OR ARYLOXY, EACH OF NOT MORE THAN 10 CARBON ATOMS AND WHEN X IS H, X'' IS CL OR BR AND RD IS ALKYL OR CYCLOALKYL AND WHEN X IS CL OR BR, X'' IS H AND RD IS R1C(O)-. |