Process for the preparation of heterocyclic phenyl ethers
    22.
    发明授权
    Process for the preparation of heterocyclic phenyl ethers 失效
    制备杂环苯基醚的方法

    公开(公告)号:US4564682A

    公开(公告)日:1986-01-14

    申请号:US583713

    申请日:1984-02-27

    CPC classification number: C07D263/58 C07D235/26 C07D277/68

    Abstract: A compound of the formula ##STR1## is reacted with a phenol of the formula ##STR2## in the presence of an acid to produce a heterocyclic phenyl ether of the formula ##STR3## wherein each R is independently selected from halogen, trifluoromethyl, nitro, cyano, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms or alkylthio having 1 to 4 carbon atoms;A is oxygen, sulfur or N-alkyl having 1 to 4 carbon atoms; andn is a number from 0 to 3.

    Abstract translation: 在酸存在下,将式“IMAGE”或“IMAGE”的化合物与式IMA的化合物反应,得到式IMA的杂环苯基醚,其中每个R独立地选自卤素, 三氟甲基,硝基,氰基,具有1至4个碳原子的烷基,具有1至4个碳原子的烷氧基或具有1至4个碳原子的烷硫基; A是氧,硫或具有1至4个碳原子的N-烷基; n为0〜3的数。

    2-Benzazolyl, 2-benzothiazolyl and 2-imidazolyl
    27.
    发明授权
    2-Benzazolyl, 2-benzothiazolyl and 2-imidazolyl 失效
    2-苯并唑基,2-苯并噻唑基和2-咪唑基

    公开(公告)号:US4263440A

    公开(公告)日:1981-04-21

    申请号:US937092

    申请日:1978-08-28

    Inventor: Reinhard Handte

    CPC classification number: C07D263/58 C07D235/26 C07D277/68

    Abstract: Heterocyclic phenyl ethers of the formula ##STR1## in which (R).sub.n is hydrogen or up to three identical or different substituents selected from halogen, CF.sub.3, NO.sub.2, CN, alkyl, alkoxy and alkylthio, and A is oxygen, sulfur or N(C.sub.1 -C.sub.4)alkyl, provided that the --OH group is not in para-position if (R).sub.n is hydrogen and A is sulfur, are useful as starting materials for the manufacture of selective herbicides.

    Abstract translation: 其中(R)n为氢或至多三个相同或不同的选自卤素,CF 3,NO 2,CN,烷基,烷氧基和烷硫基的取代基的杂环苯基醚,A为氧,硫或N( C1-C4)烷基,条件是如果(R)n为氢且A为硫,则-OH基团不在对位,可用作制备选择性除草剂的起始原料。

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