Process for the preparation of hydroxyphenyl ethers
    349.
    发明授权
    Process for the preparation of hydroxyphenyl ethers 失效
    羟基苯基醚的制备方法

    公开(公告)号:US4264769A

    公开(公告)日:1981-04-28

    申请号:US8821

    申请日:1979-02-02

    Applicant: Heinz Forster

    Inventor: Heinz Forster

    Abstract: A novel process for the preparation of a hydroxyphenyl ether compound of the formula ##STR1## in which R represents a radical of the formula ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from hydrogen, halogen, haloalkyl, nitro or cyano; orR represents a heterocyclic radical which optionally carries one or more substituents selected from halogen, halogenoalkyl, alkoxy, nitro and cyano and which can contain an optionally substituted fused benzene ring,which process comprises reacting a halogen compound of the formulaR--Hal (II)in whichR is defined as above, andHal is fluorine, chlorine or bromine,with a dihydroxybenzene of the formula ##STR3## in the presence of calcium hydroxide and in the presence of a polar diluent, at a temperature of from 20.degree. C. to 200.degree. C.

    Abstract translation: 一种制备式(I)的羟基苯基醚化合物的新方法,其中R表示下式的基团:其中R 1,R 2和R 3独立地选自氢,卤素,卤代烷基,硝基 或氰基; 或R表示任选地携带一个或多个选自卤素,卤代烷基,烷氧基,硝基和氰基的取代基并且可以含有任选取代的稠合苯环的杂环基,该方法包括使式R-Hal的卤素化合物 )其中R如上所定义,Hal是氟,氯或溴,在氢氧化钙存在下,在极性稀释剂的存在下,在下式的化合物(III)的二羟基苯中,在 20℃〜200℃

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