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    • 67. 发明授权
    • Process for the preparation of trifluoromethylphenyl oxyphenyl ether
compounds
    • 制备三氟甲基苯基氧基苯基醚化合物的方法
    • US4450308A
    • 1984-05-22
    • US325809
    • 1981-11-30
    • Heinz ForsterUwe Priesnitz
    • Heinz ForsterUwe Priesnitz
    • C07C41/00C07C43/29C07C67/00C07C41/16
    • C07C43/29
    • New process for the preparation of known trifluoromethylphenyl oxyphenyl ether compounds of the formula ##STR1## wherein X stands for fluorine, chlorine or bromine andR for moieties, substituted if desired, of the series alkyl, alkenyl and alkinyl,by reacting 1,2-dihalogen-4-trifluoromethylbenzenes of the formula ##STR2## in which X and X.sup.1 independently of one another stand for fluorine, chlorine or bromine,with phenols of the formula ##STR3## in which R has the meaning given above, and basic alkali or alkaline earth compounds or with the salts formed from the phenols of formula (III) and the basic alkali or alkaline earth compounds, in the presence of diluents at temperatures between 60.degree. and 120.degree. C.The compounds of the formula (I) are intermediates for the synthesis of herbicides.
    • 用于制备式(I)的已知的三氟甲基苯基氧基苯基醚化合物的新方法其中X代表氟,氯或溴,R代表部分,如果需要,可以取代烷基,链烯基和炔基,通过使1 ,其中X和X 1彼此独立地表示氟,氯或溴的式(II)的2-二卤代-4-三氟甲基苯,其中R具有式 以及碱性碱金属或碱土金属化合物,或与式(III)的酚和碱性碱金属或碱土金属化合物形成的盐在稀释剂存在下,温度在60至120℃之间。化合物 式(I)的化合物是用于合成除草剂的中间体。