Process for preparing 2-trifluoromethoxy-aniline
    85.
    发明授权
    Process for preparing 2-trifluoromethoxy-aniline 失效
    制备2-三氟甲氧基苯胺的方法

    公开(公告)号:US5840983A

    公开(公告)日:1998-11-24

    申请号:US896353

    申请日:1997-07-18

    摘要: 2-Trifluoromethoxy-aniline, which can be used as an intermediate for example for preparing pharmaceuticals and agrochemicals, is obtained in very good yields and high purity by nitrating in a first step 1,2-dichlorotrifluoromethoxy-benzene at temperatures between -20.degree. C. and +80.degree. C. and catalytically hydrogenating the resulting nitration products (exclusively 1,2-dichloro-5-nitro-4-trifluoromethoxy-benzene and 1,2-dichloro-3-nitro-4-trifluoromethoxy-benzene) in a 2nd step, it being possible to isolate the aniline intermediates corresponding to the two nitrobenzene derivatives; the nitrobenzene and aniline derivatives mentioned, being novel compounds, are also part of the subject matter of the invention.

    摘要翻译: 可以用作制备药物和农业化学品的中间体的2-三氟甲氧基苯胺以非常好的产率和高纯度通过在第一步骤中通过在-20℃的温度下硝化来获得1,2-二氯三氟甲氧基 - 苯 和+ 80℃,并将所得硝化产物(仅1,2-二氯-5-硝基-4-三氟甲氧基 - 苯和1,2-二氯-3-硝基-4-三氟甲氧基 - 苯)催化氢化 第二步,可以分离对应于两种硝基苯衍生物的苯胺中间体; 提及的硝基苯和苯胺衍生物作为新化合物也是本发明主题的一部分。

    Process for the preparation of
2,2-difluorobenzo[1,3]-dioxole-carbaldehydes and new intermediate
products
    87.
    发明授权
    Process for the preparation of 2,2-difluorobenzo[1,3]-dioxole-carbaldehydes and new intermediate products 失效
    制备2,2-二氟苯并[1,3] - 二氧杂环戊烯 - 羰基醛和新中间产物的方法

    公开(公告)号:US5525739A

    公开(公告)日:1996-06-11

    申请号:US362081

    申请日:1994-12-22

    CPC分类号: C07D317/46

    摘要: According to the invention, a new process has been found for the preparation of 2,2-difluoro-benzo[1,3]-dioxole-cabaldehydes of the formula (I) ##STR1## in which benzo[1,3]dioxole-carbaldehydes are chlorinated, the 2,2-dichloro-dichloromethylbenzo[1,3]dioxoles formed, which are likewise new, are partly fluorinated to give the 2,2-difluoro-dichloromethyl-benzo[1,3]dioxoles, which are likewise new, and these are then reacted with urotropin to give the desired compounds.

    摘要翻译: 根据本发明,已经发现了制备式(I)的2,2-二氟 - 苯并[1,3] - 二恶醇 - 八氢呋喃的新方法,其中苯并[1,3 形成的2,2-二氯 - 二氯甲基苯并[1,3]二氧杂环戊烯部分被氟化,得到2,2-二氟 - 二氯甲基 - 苯并[1,3]二氧杂环戊烯, 它们同样是新的,然后将它们与促胃泌蛋白反应以得到所需的化合物。

    Process for preparing hexafluorochlorobutenes
    88.
    发明授权
    Process for preparing hexafluorochlorobutenes 失效
    制备六氟氯代丁烯的方法

    公开(公告)号:US5523497A

    公开(公告)日:1996-06-04

    申请号:US325319

    申请日:1994-10-25

    CPC分类号: C07C17/269

    摘要: 1,1,1,4,4,4-hexafluoro-chlorobutenes are obtained by pyrolysis of 1,1,1-trifluoro-2,2-dichloroethane. The hexafluoro-chlorobutenes obtained in this way can be converted into hexafluorobutane, a CFC substitute, by hydrogenation.

    摘要翻译: PCT No.PCT / EP93 / 00980 Sec。 371日期1995年10月25日第 102(e)日期1994年10月25日PCT提交1993年4月22日PCT公布。 WO93 / 22263 PCT出版物 日期:1月11日,1993.1,1,1,4,4,4-六氟 - 氯丁烯是通过1,1,1-三氟-2,2-二氯乙烷的热解得到的。 以这种方式获得的六氟 - 氯代丁烯可通过氢化转化为六氟丁烷,CFC替代物。

    Fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles, their preparation and
their use
    89.
    发明授权
    Fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles, their preparation and their use 失效
    氟化1,3-苯并-1,3-二氧杂环戊烯,其制备及其用途

    公开(公告)号:US5420309A

    公开(公告)日:1995-05-30

    申请号:US145431

    申请日:1993-10-29

    摘要: Novel fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles of formula (I): ##STR1## in which A is C-R.sup.4 or N,X is hydrogen, fluorine, chlorine or bromine andR.sup.1 to R.sup.4 can be identical to or different from one another and are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogeno-C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.10 -aryl, CHO, COOH, COCl, CN, OH, NCO, COO--C.sub.1 -C.sub.6 -alkyl, NO.sub.2, NH.sub.2, NH--C.sub.1 -C.sub.6 -alkyl, N(C.sub.1 -C.sub.6 -alkyl).sub.2, SO.sub.2 Cl, SO.sub.3 H, SO.sub.3 Na or SO.sub.3 K,it also being possible for two adjacent radicals from the series R.sup.1 to R.sup.4 together to be an optionally substituted --CH.dbd.CH--CH.dbd.CH-- bridge, processes for their preparation and their use for the preparation of plant protection agents.

    摘要翻译: 式(I)的新型氟化1,3-苯并-1,3-二氧杂环戊烯:其中A为C-R4或N,X为氢,氟,氯或溴,R1为 R 4可以彼此相同或不同,各自为氢,卤素,C 1 -C 6 - 烷基,C 1 -C 6 - 烷氧基,卤代-C 1 -C 6 - 烷基,C 6 -C 10 - 芳基,CHO,COOH,COCl,CN ,OH,NCO,COO-C 1 -C 6烷基,NO 2,NH 2,NH-C 1 -C 6烷基,N(C 1 -C 6烷基)2,SO 2 Cl,SO 3 H,SO 3 Na或SO 3 K, R1至R4的基团一起为任选取代的-CH = CH-CH = CH-桥,其制备方法及其用于制备植物保护剂的用途。

    2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermediate
products
    90.
    发明授权
    2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermediate products 失效
    2,2-二氟苯并(1,3) - 二氧杂环戊烯 - 碳醛和新的中间产物

    公开(公告)号:US5420308A

    公开(公告)日:1995-05-30

    申请号:US207102

    申请日:1994-03-04

    IPC分类号: A01N43/30 C07D317/46

    CPC分类号: C07D317/46

    摘要: According to the invention, a new process has been found for the preparation of 2,2-difluoro-benzo[1,3]-dioxole-carbaldehydes of the formula (I) ##STR1## in which benzo[1,3]dioxole-carbaldehydes are chlorinated, the 2,2-dichloro-dichloromethylbenzo[1,3]dioxoles formed, which are likewise new, are partly fluorinated to give the 2,2-difluoro-dichloromethyl-benzo[1,3]dioxoles, which are likewise new, and these are then reacted with urotropin to give the desired compounds.

    摘要翻译: 根据本发明,已经发现了制备式(I)的2,2-二氟 - 苯并[1,3] - 二恶醇 - 碳醛的新方法,其中苯并[1,3 形成的2,2-二氯 - 二氯甲基苯并[1,3]二氧杂环戊烯部分被氟化,得到2,2-二氟 - 二氯甲基 - 苯并[1,3]二氧杂环戊烯, 它们同样是新的,然后将它们与促胃泌蛋白反应以得到所需的化合物。