申请人:Nissan Chemical Industries
公开号:US04571397A1
公开(公告)日:1986-02-18
Novel 5-substituted -3(2H)-pyridazinone derivatives and preparation thereof are provided. The derivatives have the formula: ##STR1## wherein, R denotes an alkyl, R.sup.1 and R.sup.2 denote each independently hydrogen or a lower alkyl, X denotes hydrogen, a lower alkyl, a halogen, a lower alkoxy, a lower haloalkyl, a lower haloalkoxy, a cycloalkyl, trimethylsilyl (-Si(CH.sub.3).sub.3), ##STR2## (wherein Y denotes hydrogen, a halogen, a lower alkyl, a lower alkoxy, a lower haloalkyl, a lower haloalkoxy or a cycloalkyl, and m is an integer of 1 to 5), n is an integer of 1 to 5, and Z denotes a halogen; said X being the same or different when n is 2 or more, and the alkyls and the alkyl moieties contained in the groups being straight or branched.
提供了一种新型的5-取代-3(2H)-吡啶嗪酮衍生物及其制备方法。该衍生物的化学式为:##STR1## 其中,R代表烷基,R.sup.1和R.sup.2各自独立地代表氢或较低的烷基,X代表氢、较低的烷基、卤素、较低的烷氧基、较低的卤代烷基、较低的卤代烷氧基、环烷基、三甲基硅基(-Si(CH.sub.3).sub.3)、##STR2##(其中Y代表氢、卤素、较低的烷基、较低的烷氧基、较低的卤代烷基、较低的卤代烷氧基或环烷基,m为1至5的整数),n为1至5的整数,Z代表卤素;当n为2或更多时,X可以相同或不同,所述基团中的烷基和烷基基团可以是直链的或支链的。