Benzoxazines and herbicidal use

摘要

Novel benzoxazines of the formulae (I), (III), (IV), (V), (VII) and (XIV). <IMAGE> (I) <IMAGE> (III) <IMAGE> (IV) <IMAGE> (V) <IMAGE> (VII) <IMAGE> (VIII) and <IMAGE> (XIV) Compound I is herbicidal and can also be reacted to convert the aminocarbonyl group to a nitrile, the resulting product also being herbicidal.