Herbicidally active benzoxazines
AssigneeNihon Bayer Agrochem K.K.
InventorsToyohiko Kume, Toshio Goto, Atsumi Kamochi, Hidenori Hayakawa, Akihiko Yanagi, Tadao Asami
Life of this patent
Estimating the term…
Abstract
Novel benzoxazines of the formula (I) ##STR1## wherein Q represents ##STR2## X represents hydrogen or fluorine; and R represents alkyl, alkenyl, alkynyl, cyclopropylmethyl, cyanoalkyl, alkoxyalkyl, or alkylthioalkyl; the use of the new compounds as herbicides, and novel compounds of the formula (IX) as intermediates ##STR3## wherein Y represents hydrogen, nitro, or amino; X represents hydrogen or fluorine; and R' represents hydrogen or R; but Y and X do not at the same time represent hydrogen; are disclosed.
Claims18
A benzoxazine of the formula (I) ##STR36## wherein Q represents ##STR37## X represents a hydrogen atom or fluorine atom, and R represents a C.sub.1-5 alkyl group, C.sub.3-4 alkenyl group, C.sub.3-4 alkynyl group, cyclopropylmethyl group, C.sub.2-3 cyanoalkyl group, C.sub.1-2 alkoxy-C.sub.1-2 alkyl group or C.sub.1-2 alkylthio-C.sub.1-2 alkyl group.
Dependencies are inferred from the claim text.