申请人:Ciba-Geigy Corporation
公开号:US04640703A1
公开(公告)日:1987-02-03
2-Phenoxypropionic acid cyanamides of the formula ##STR1## have a useful selective herbicidal activity against weeds, preferably grass weeds, in crops of useful plants. In this formula R is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl or C.sub.2 -C.sub.4 alkoxyalkyl, and T is a radical ##STR2## wherein A is oxygen or sulfur, X is fluorine, chlorine, bromine, iodine or trifluoromethyl, Y is hydrogen, fluorine, chlorine, bromine or trifluormethyl, and Z is nitrogen or the methine bridge.
公式为##STR1##的2-苯氧基丙酸腙具有对作物中的杂草,特别是草本杂草的有用选择性除草活性。在此公式中,R是氢、C.sub.1-C.sub.4烷基、C.sub.3-C.sub.4烯基、C.sub.3-C.sub.4炔基或C.sub.2-C.sub.4烷氧基烷基,而T是一个基团##STR2##其中A是氧或硫,X是氟、氯、溴、碘或三氟甲基,Y是氢、氟、氯、溴或三氟甲基,Z是氮或甲基桥。