Preparation of aliphatically substituted fluorobenzenes
    53.
    发明授权
    Preparation of aliphatically substituted fluorobenzenes 失效
    脂肪族取代氟苯的制备

    公开(公告)号:US4996377A

    公开(公告)日:1991-02-26

    申请号:US482646

    申请日:1990-02-21

    摘要: Aliphatically substituted fluorobenzenes of the general formula I ##STR1## where R is an aliphatic or cycloaliphatic radical, n is 2, 3 or 4 and X is hydrogen, fluorine, chlorine or bromine, are prepared by diazotization of the corresponding aniline derivative of the general formula II ##STR2## in the presence of tetrafluoboric acid and decomposition of the resulting diazonium tetrafluoborate of the general formula III ##STR3## by a process in which the decomposition reaction is carried out simultaneously with the diazotization reaction, in the presence of elemental copper and/or copper(I) and/or copper(II) salts and at from -15.degree. to 80.degree. C.

    摘要翻译: 通式I的脂肪族取代的氟苯,其中R是脂族或脂环族基团,n是2,3或4,X是氢,氟,氯或溴,通过将对应的苯胺衍生物的重氮化 在四溴硼酸存在下通式II II,通过其中分解反应与重氮化反应同时进行的方法分解得到的通式III III的四氟硼酸盐,在存在 元素铜和/或铜(I)和/或铜(II)盐,并且在-15℃至80℃。

    Substituted 2-phenylpyridines as herbicides
    57.
    发明授权
    Substituted 2-phenylpyridines as herbicides 失效
    取代的2-苯基吡啶作为除草剂

    公开(公告)号:US6010980A

    公开(公告)日:2000-01-04

    申请号:US29994

    申请日:1998-03-13

    CPC分类号: C07D213/61 A01N43/40

    摘要: Substituted 2-phenylpyridines I and their salts ##STR1## where n=0, 1;R.sup.1 =halogen, C.sub.1 -C.sub.4 -haloalkyl;R.sup.2 and R.sup.3 =H, halogen;R.sup.4 =CN, halogen;R.sup.5 =--CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6, --CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7)R.sup.8, --O-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6, --O-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7) R.sup.8, --S-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6 or --S-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7)R.sup.8 ;R.sup.6 =H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl;R.sup.7 =H, C.sub.1 -C.sub.4 -alkyl, carboxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkyl;R.sup.8 =H or C.sub.1 -C.sub.4 -alkyl,are used as herbicides and for the desiccation/defoliation of plants.

    摘要翻译: PCT No.PCT / EP96 / 03949 Sec。 371日期1998年3月13日 102(e)1998年3月13日PCT PCT 1996年9月9日PCT公布。 出版物WO97 / 11059 日期1997年3月27日取代的2-苯基吡啶I及其盐,其中n = 0,1; R1 =卤素,C1-C4卤代烷基; R2和R3 = H,卤素; R4 = CN,卤素; R5 = -CO-O-(C1-C4-亚烷基)-CO-OR6,-CO-O-(C1-C4-亚烷基)-CO-N(R7)R8,-O-(C1-C4-亚烷基) -CO-O-(C1-C4-亚烷基)-CO-OR6,-O-(C1-C4-亚烷基)-CO-O-(C1-C4-亚烷基)-CO-N(R7)R8,-S - (C1-C4-亚烷基)-CO-O-(C1-C4-亚烷基)-CO-OR6或-S-(C1-C4-亚烷基)-CO-O-(C1-C4-亚烷基) N(R 7)R 8; R6 = H,C1-C4-烷基,C1-C4-烷氧基-C1-C4-烷基,C2-C4-烯基,C3-C4-炔基; R7 = H,C1-C4-烷基,羧基-C1-C4-烷基,C1-C4-烷氧基羰基-C1-C4-烷基; R8 = H或C1-C4烷基,用作除草剂和用于植物的干燥/脱叶。