申请人:Shionogi & Co., Ltd.
公开号:US04062861A1
公开(公告)日:1977-12-13
Isoxazole derivatives represented by the formula: ##STR1## wherein R represents hydrogen, alkyl group, or aryl group, R.sup.1 represents hydrogen, or alkyl group, R.sup.2 represents acyl group, a ##STR2## group [R.sup.3 and R.sup.4 each represent hydrogen, alkyl group, alkenyl group, alkynyl group, aralkyl group, aryl group, alkoxy group, or alkylthio group; or optionally R.sup.3 and R.sup.4 are combined with each other directly or indirectly including another hetero atom (nitrogen, oxygen, or sulfur) to form a nitrogen-containing ring], or a --CO--Y--R.sup.5 group [R.sup.5 represents alkyl group, alkenyl group, alkynyl group, aralkyl group, or aryl group, and Y represents oxygen, or sulfur], and X represents hydrogen, alkyl group, or halogen, or R and X are optionally combined each other to form an alkylene group, said alkyl group, aralkyl group, and aryl group each being optionally substituted with one or more members selected from halogen, alkyl group, alkoxy group, nitro group, and hydroxy group, are prepared by eleven routes. The isoxazole derivatives are useful as herbicides.
以式子表示的异噁唑衍生物:##STR1## 其中 R 代表氢、烷基或芳基,R.sup.1 代表氢或烷基,R.sup.2 代表酰基、一个 ##STR2## 基团 [R.sup.3 和 R.sup.4 各自代表氢、烷基、烯基、炔基、芳基烷基、芳基、烷氧基或烷硫基;或可选地,R.sup.3 和 R.sup.4 直接或间接地与彼此结合,包括另一个杂原子(氮、氧或硫)以形成含氮环],或一个 --CO--Y--R.sup.5 基团 [R.sup.5 代表烷基、烯基、炔基、芳基烷基或芳基,Y 代表氧或硫],X 代表氢、烷基或卤素,或 R 和 X 可以可选地结合在一起形成烷基基团,其中所述烷基、芳基烷基和芳基均可选择地用一个或多个从卤素、烷基、烷氧基、硝基和羟基中选择的成员进行取代,通过十一种途径制备这些异噁唑衍生物。这些异噁唑衍生物可用作除草剂。