Preparation of 3,4-dichlorobenzotrihalides
    3.
    发明授权
    Preparation of 3,4-dichlorobenzotrihalides 失效
    制备3,4-二氯苯并三卤化物

    公开(公告)号:US4769503A

    公开(公告)日:1988-09-06

    申请号:US645814

    申请日:1984-08-30

    摘要: A process for the preparation of 3,4-dichlorobenzotrihalides of the formula I ##STR1## where X is fluorine or chlorine, by reacting the corresponding 4-monochlorobenzotrihalides with chlorine gas in the presence of a catalytic amount of a Lewis acid, wherein the reaction mixture is recycled by means of a pump in a circulatory apparatus with static mixers and the amount of chlorine equivalent to the conversion of the corresponding 4-monochlorobenzotrihalide is introduced at 20.degree.-120.degree. C.

    摘要翻译: 通过在催化量的路易斯酸的存在下,使相应的4-单氯苯并三卤代苯与氯气反应,制备式I的3,4-二氯苯并三卤化物,其中X是氟或氯,其中 反应混合物通过泵在具有静态混合器的循环装置中再循环,并且相应于相应的4-单氯苯并三卤甲烷的转化量的氯的量在20-120℃下引入。

    Preparation of 2-aryloxy-2-haloproptonic acid compounds
    4.
    发明授权
    Preparation of 2-aryloxy-2-haloproptonic acid compounds 失效
    2-芳氧基-2-肟基酸化合物的制备

    公开(公告)号:US4348534A

    公开(公告)日:1982-09-07

    申请号:US274493

    申请日:1981-06-17

    CPC分类号: C07C69/712

    摘要: 2-Aryloxy-2-halopropionic acid compounds are prepared by reacting 2-aryloxypropionic acid compounds with N-halocarboxylic acid imides in the presence of aliphatic halohydrocarbons as solvents, and of from 0.0001 to 0.001 mole of halogen per mole of N-halocarboxylic acid imide, from 0.005 to 0.05 per cent by weight of water, based on N-halocarboxylic acid imide, and from 0.0005 to 0.005 mole of azo-bis-isobutyronitrile and/or dibenzoyl peroxide, per mole of N-halocarboxylic acid imide.The end products obtainable by the process of the invention are valuable starting materials for the preparation of drugs, crop protection agents and dyes.

    摘要翻译: 2-芳氧基-2-卤代丙酸化合物是通过在脂肪族卤代烃作为溶剂存在下使2-芳氧基丙酸化合物与N-卤代羧酸酰亚胺反应制备的,每摩尔N-卤代羧酸酰亚胺使0.0001-0.003摩尔卤素 ,基于N-卤代羧酸酰亚胺的0.005至0.05重量%的水,以及每摩尔N-卤代羧酸酰亚胺的0.0005至0.005摩尔偶氮双异丁腈和/或二苯甲酰基过氧化物。 通过本发明方法可获得的最终产物是用于制备药物,作物保护剂和染料的有价值的起始材料。

    Preparation of chlorinated phenoxyalkanoic acids
    6.
    发明授权
    Preparation of chlorinated phenoxyalkanoic acids 失效
    氯化苯氧烷酸的制备

    公开(公告)号:US4515985A

    公开(公告)日:1985-05-07

    申请号:US331457

    申请日:1981-12-16

    CPC分类号: C07C51/363 C07C51/367

    摘要: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or .alpha.-2,4-dichloro- or .alpha.-2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or .alpha.-phenoxypropionic or .alpha.-2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or .alpha.-phenoxypropionic or .alpha.-2-methylphenoxypropionic acid in water at from 30.degree. to 70.degree. C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or .alpha.-2,4-dichloro- or .alpha.-2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.

    摘要翻译: 一种通过使苯氧基乙酸或2-甲基苯氧基乙酸反应制备2,4-二氯或2-甲基-4-氯苯氧基乙酸或α-2,4-二氯或α-甲基-4-氯苯氧基丙酸的方法或 α-苯氧基丙酸或α-2-甲基苯氧基丙酸与氯在水中的反应,其中苯氧基乙酸或苯氧基丙酸从其水溶液中沉淀出来,将氯气送入得到的苯氧基乙酸或2-甲基苯氧基乙酸或α-苯氧基丙酸或α- -2-甲基苯氧基丙酸在30至70℃的水中,其速率不超过其在悬浮液中消耗的速率,直到理论上所需量的氯气的100至110%被吸收 通过悬浮液,从悬浮液中分离出2,4-二氯或2-甲基-4-氯 - 苯氧基乙酸或α-2,4-二氯或α-甲基-4-氯 - 苯氧基丙酸 。

    Preparation of arylbenzylamines
    7.
    发明授权
    Preparation of arylbenzylamines 失效
    芳基苄胺的制备

    公开(公告)号:US5536877A

    公开(公告)日:1996-07-16

    申请号:US409090

    申请日:1995-03-23

    CPC分类号: C07C211/48 C07C209/10

    摘要: A process for the preparation of arylbenzylamines by the reaction of arylamines with a benzyl chloride, wherein the reaction is carried out in the presence of both a phase-transfer catalyst and a base selected from the group consisting of the inorganic bases and salts of weak organic acids.

    摘要翻译: 通过芳基胺与苄基氯的反应制备芳基苄基胺的方法,其中反应在相转移催化剂和选自无机碱和弱有机物的盐的碱的存在下进行 酸。

    Fluoroethoxyphenyl (di)thiophosphates, a process for their preparation
and their use for controlling pests
    8.
    发明授权
    Fluoroethoxyphenyl (di)thiophosphates, a process for their preparation and their use for controlling pests 失效
    氟代乙氧基苯基(二)硫代磷酸酯,其制备方法及其用于防治害虫

    公开(公告)号:US4551448A

    公开(公告)日:1985-11-05

    申请号:US482775

    申请日:1983-04-07

    IPC分类号: A01N57/14 C07F9/18 C07F9/165

    CPC分类号: C07F9/18 A01N57/14

    摘要: Fluoroethoxyphenyl (di)thiophosphates of the formula ##STR1## where R.sup.1 is alkyl of 1 to 3 carbon atoms, R.sup.2 is alkyl of 1 to 5 carbon atoms, alkoxyalkyl or alkylthioalkyl, each of 2 to 8 carbon atoms, or cycloalkyl of 3 to 6 carbon atoms, R.sup.3, R.sup.4 and R.sup.5 independently of one another are each hydrogen, fluorine, chlorine, bromine or cyano, or alkyl of 1 to 4 carbon atoms which is unsubstituted or substituted by halogen, cyano, alkoxy or alkylthio, X is oxygen or sulfur, and Y is hydrogen, fluorine, chlorine or bromine, their preparation and their use as pesticides.

    摘要翻译: 其中R 1为1至3个碳原子的烷基,R 2为1至5个碳原子的烷基,烷氧基烷基或烷基硫代烷基,每个为2-8个碳原子,或环烷基的氟化乙氧基苯基(二)硫代磷酸酯 3至6个碳原子,R 3,R 4和R 5彼此独立地分别是氢,氟,氯,溴或氰基,或未被取代或被卤素,氰基,烷氧基或烷硫基取代的1至4个碳原子的烷基,X 是氧或硫,Y是氢,氟,氯或溴,它们的制备和用作农药。

    Difluoromethoxyphenyl thiophosphates as pesticides
    9.
    发明授权
    Difluoromethoxyphenyl thiophosphates as pesticides 失效
    二氟甲氧基苯基硫代磷酸酯作为农药

    公开(公告)号:US4512984A

    公开(公告)日:1985-04-23

    申请号:US498761

    申请日:1983-05-27

    IPC分类号: A01N57/14 C07F9/18 C07F9/165

    CPC分类号: C07F9/18 A01N57/14

    摘要: Difluoromethoxyphenyl thiophosphates of the formula I ##STR1## where R.sup.1 is alkyl of not more than 3 carbon atoms, R.sup.2 is unsubstituted or substituted alkyl of not more than 5 carbon atoms, Y is hydrogen or chlorine, X is oxygen or sulfur and R.sup.3, R.sup.4 and R.sup.5 are each hydrogen, halogen, nitrile, alkoxy or alkylthio, each of not more than 4 carbon atoms, or unsubstituted or substituted alkyl of not more than 4 carbon atoms, their preparation and their use as agents for controlling pests, in particular insects and other arthropods.

    摘要翻译: 式I的二氟甲氧基苯基硫代磷酸酯其中R1是不大于3个碳原子的烷基,R2是不大于5个碳原子的未取代或取代的烷基,Y是氢或氯,X是氧或硫,R3,R4 和R5各自为不大于4个碳原子的氢,卤素,腈,烷氧基或烷硫基,或不超过4个碳原子的未取代或取代的烷基,它们的制备及其作为防治害虫特别是昆虫的药物的用途 和其他节肢动物。