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US 5,856,559 AGranted
Process for preparing substituted aryluracils
AssigneeBayer Aktiengesellschaft
InventorsRoland Andree, Mark Wilhelm Drewes, Bernd Gallenkamp
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Abstract
The invention relates to a novel process for preparing substituted aryluracils by reacting aminoalkenoic esters with arylurethanes and then with sulfonamides, and additionally to novel 4-(alkoxycarbonylamino)-2,5-difluorobenzonitriles.
Claims1
4-(Alkoxycarbonylamino)-2,5-difluorobenzonitrile of the formula (III) ##STR11## wherein R represents methyl or ethyl.
Dependencies are inferred from the claim text.