申请人:BASF Aktiengesellchaft
公开号:US04832879A1
公开(公告)日:1989-05-23
Novel substituted 3-fluoroalkoxybenzoyl halides of the formula ##STR1## where Hal is fluorine or chlorine, R.sup.1 is chlorodifluoromethyl, difluoromethyl, 1,1,2,2-tetrafluoroethyl, 2-bromo-1,1,2-trifluoroethyl, pentafluoroethyl or 1,1,2,3,3,3-hexafluoropropyl and R.sup.2 is hydrogen, or R.sup.1 is chlorodifluoromethyl or trifluoromethyl and R.sup.2 is chlorine, and processes for their preparation. The novel 3-fluoroalkoxybenzoyl halides are valuable intermediates for the synthesis of biologically active compounds, for example of 2-(3-fluoroalkoxyphenyl)-3,1-benzoxazin-4-ones, which are herbicidally active.
化合物的名称为替代了3-氟烷氧基苯甲酰卤化物,化学式为 ##STR1## 其中Hal为氟或氯,R.sup.1为氯二氟甲基,二氟甲基,1,1,2,2-四氟乙基,2-溴-1,1,2-三氟乙基,五氟乙基或1,1,2,3,3,3-六氟丙基,R.sup.2为氢,或R.sup.1为氯二氟甲基或三氟甲基,R.sup.2为氯。制备这些新型的3-氟烷氧基苯甲酰卤化物的方法也包括在内。这些新型的3-氟烷氧基苯甲酰卤化物是合成生物活性化合物的重要中间体,例如2-(3-氟烷氧基苯基)-3,1-苯并噁嗪-4-酮,这些化合物具有除草活性。