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    • 5. 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。
    • 8. 发明授权
    • Preparation of optically active azole derivatives
    • 光学活性唑衍生物的制备
    • US4774338A
    • 1988-09-27
    • US856913
    • 1986-04-28
    • Uwe Priesnitz
    • Uwe Priesnitz
    • A01N43/50A01N43/653C07B31/00C07B57/00C07C67/00C07D233/60C07D233/61C07D249/08C07D521/00
    • C07D231/12C07D233/56C07D249/08
    • A process for the preparation of a substantially pure optically active azole derivative of the formula ##STR1## in which R.sup.1 and R.sup.3 are organic radicals,R.sup.2 is hydrogen or methyl, andX is N or CH,comprising in a first stage reacting a racemate of an azole derivative of the formula ##STR2## with an optically active permethric acid halide of the formula ##STR3## in which Hal represents chlorine or bromine,thereby to produce a diastereomeric mixture of an ester of the formula ##STR4## in a second stage separating the components of the ester mixture based on their different physical properties, and in a third stage reacting an individual component ester with a base in the presence of a diluent to liberate the desired substantially pure optically active azole derivative.
    • 制备式“IMAGE”的基本上纯的光学活性唑衍生物的方法,其中R 1和R 3是有机基团,R 2是氢或甲基,X是N或CH,包括在第一阶段中使外消旋物 具有式“IMAGE”的光学活性二氯甲基卤,其中Hal表示氯或溴,由此在第二级分离中产生式“IMAGE”的酯的非对映体混合物 基于它们不同物理性质的酯混合物的组分,以及在稀释剂存在下使单独组分酯与碱反应的第三阶段,以释放所需的基本上纯的光学活性唑衍生物。