Phenylalkenylcarboxylic acids and their esters
    72.
    发明授权
    Phenylalkenylcarboxylic acids and their esters 失效
    苯基链烯基羧酸及其酯

    公开(公告)号:US4933001A

    公开(公告)日:1990-06-12

    申请号:US217563

    申请日:1988-07-11

    CPC分类号: C07D209/48 A01N37/32

    摘要: Phenylalkenylcarboxylic acid and esters thereof of the general formula I ##STR1## where X is hydrogen or fluorine, R.sup.1 is hydrogen, C.sub.1 C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, (C.sub.1 -C.sub.4 -alkoxy)-C.sub.2 -C.sub.4 -alkyl or (C.sub.1 -C.sub.4 -alkylthio)-C.sub.2 -C.sub.4 -alkyl; W is a divalent radical --CH.dbd.CR.sup.2 --; --CH.dbd.CY--; --CH.dbd.CR.sup.2 --CH.sub.2 --; --CH.dbd.CR.sup.2 --CH.dbd.CR.sup.3 -- or ##STR2## where Y is chlorine or bromine and R.sup.2 and R.sup.3 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, with the proviso that X is not F when W is --CH.dbd.CR.sup.2 --, their manufacture, and their use as herbicides.

    摘要翻译: 苯基链烯基羧酸及其通式I的酯其中X是氢或氟,R 1是氢,C 1 -C 6 - 烷基,C 5 - 或C 6 - 环烷基,(C 1 -C 4 - 烷氧基)-C 2 -C 4烷基或 (C 1 -C 4 - 烷硫基)-C 2 -C 4 - 烷基; W是二价基团-CH = CR2-; -CH = CY-; -CH = CR 2 -CH 2 - ; -CH = CR2-CH = CR3-或其中Y是氯或溴,R2和R3各自是氢或C1-C4-烷基,条件是当W是-CH = CR2-时,X不是F, 它们的制造及其作为除草剂的用途。

    Preparation of cyanopyridines
    73.
    发明授权
    Preparation of cyanopyridines 失效
    制备氰基吡啶

    公开(公告)号:US4931564A

    公开(公告)日:1990-06-05

    申请号:US279041

    申请日:1988-12-02

    摘要: Cyanopyridines of the formula ##STR1## are prepared by reacting acrolein and an alkanal ##STR2## or its acetal or ketone of the formula ##STR3## where R.sup.1, R.sup.2 and R.sup.3 may be identical or different and are each hydrogen, alkyl of 1 to 6 carbon atoms or aryl and R.sup.4 is alkyl and n is 0-11, with ammonia in the presence of a zeolite as a catalyst. The reaction is preferably carried out in the gas phase.

    摘要翻译: 通过使丙烯醛和其中R 1,R 2和R 3可以相同或不同并且各自为氢的烷基,其中R1,R2和R3可以相同或不同,可以通过使丙烯醛和链烷醛或其缩醛或酮的化学式< IMAGE> 碳原子或芳基,R4是烷基,n是0-11,氨在作为催化剂的沸石存在下进行。 反应优选在气相中进行。

    Preparation of substituted phenols
    74.
    发明授权
    Preparation of substituted phenols 失效
    取代苯酚的制备

    公开(公告)号:US4538009A

    公开(公告)日:1985-08-27

    申请号:US599574

    申请日:1984-04-12

    摘要: Substituted phenols of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each hydrogen or an aliphatic or aromatic hydrocarbon radical, are prepared by dehydrogenating a cyclic alcohol of the general formula II ##STR2## or a cyclic ketone of the general formula III ##STR3## where one of the broken lines can be an additional C-C bond, in the gas phase at from 150.degree. to 380.degree. C. over a supported noble metal catalyst, by a process in which the dehydrogenation catalyst used is palladium or platinum on an aluminum spinel carrier, in particular an aluminum spinel which has a BET specific surface area of from 5 to 150 m.sup.2 /g or, for the dehydrogenation of cyclohexenones, preferably from 10 to 50 m.sup.2 /g. Particularly suitable aluminum spinels are those which, in addition to aluminum, contain magnesium, zinc, cobalt or nickel.In the novel process, substituted phenols are obtained in high yields and selectivities, and the catalyst has an extremely long life without a significant decrease in activity.

    摘要翻译: 通式Ⅰ的取代的酚Ⅰ,其中R 1,R 2,R 3,R 4和R 5各自为氢或脂族或芳族烃基,通过将通式II II的环醇脱氢或 环状酮,其中一条虚线可以是额外的CC键,在负载型贵金属催化剂的150〜380℃的气相中,其中, 所用的脱氢催化剂是钯尖晶石载体上的钯或铂,特别是BET比表面积为5〜150m 2 / g的尖晶石,或者环己烯酮的脱氢优选为10〜50m2 / g。 特别合适的铝尖晶石是除了铝之外还含有镁,锌,钴或镍的铝尖晶石。 在新方法中,以高产率和选择性获得取代的酚,并且催化剂具有极长的寿命而没有显着降低活性。

    Process for the preparation of hydroxylamine ethers and their salts and
intermediates for this purpose
    79.
    发明授权
    Process for the preparation of hydroxylamine ethers and their salts and intermediates for this purpose 失效
    为此目的制备羟胺醚及其盐和中间体的方法

    公开(公告)号:US5684200A

    公开(公告)日:1997-11-04

    申请号:US454371

    申请日:1995-06-06

    CPC分类号: C07C251/54

    摘要: Hydroxylamine ethers I ##STR1## (where X is NO.sub.2, CN, halogen, alkyl or haloalkyl, Y is H, NO.sub.2, CN, halogen, alkyl or haloalkyl, n is 0-2 or 1-4 where Y and all radicals X are halogen and Alk is unsubstituted or substituted alkylene) and their salts with mineral acids or strong organic acids are prepared by reacting either a hydroximino compound II ##STR2## (where R.sup.1 is alkyl, R.sup.2 is alkyl or alkoxy or R.sup.1 +R.sup.2 form an alkylene chain) in the presence of an alkali metal hydroxide, alkali metal alcoholate, alkali metal bicarbonate or alkali metal carbonate as the base, or the corresponding anion II directly, with an alkylating agent III ##STR3## (where R.sup.3 is unsubstituted or substituted alkyl or unsubstituted or substituted phenyl) to give an oximino derivative IV ##STR4## said derivative is cleaved by means of a mineral acid or a strong organic acid to give the salt of I and, if desired, the latter is converted by means of a base into the free compound I. The hydroxylamine ethers I are intermediates for crop protection agents and drugs.

    摘要翻译: PCT No.PCT / EP93 / 03597 371日期:1995年6月6日 102(e)日期1995年6月6日PCT提交1993年12月17日PCT公布。 第WO94 / 14757号公报 日期:1994年7月7日羟胺醚I(其中X为NO 2,CN,卤素,烷基或卤代烷基,Y为H,NO 2,CN,卤素,烷基或卤代烷基,n为0-2或1-4) Y和所有基团X是卤素,Alk是未取代的或取代的亚烷基),并且它们与无机酸或强有机酸的盐通过氢肟基化合物II(其中R 1是烷基,R 2是烷基或烷氧基或 R1 + R2形成亚烷基链)在碱金属氢氧化物,碱金属醇盐,碱金属碳酸氢盐或作为碱的碱金属碳酸盐或相应的阴离子II的存在下,与烷基化剂III(III R3是未取代或取代的烷基或未取代或取代的苯基),得到肟基衍生物IV所述衍生物通过无机酸或强有机酸裂解,得到I的盐,如果需要,将后者 通过碱转化为游离化合物I.羟基 氯胺醚我是作物保护剂和药物的中间体。