Preparation of optically active 2-halopropionic acids
    2.
    发明授权
    Preparation of optically active 2-halopropionic acids 失效
    光学活性2-卤代丙酸的制备

    公开(公告)号:US5763659A

    公开(公告)日:1998-06-09

    申请号:US860085

    申请日:1997-07-01

    CPC分类号: C07B57/00 C07C51/09

    摘要: The present invention relates to a process for the preparation of optically active 2--halopropionic acids, in which the corresponding optically active alkyl 2--halopropionates are caused to react with a carboxylic acid at elevated temperature in a transacylation reaction with the formation of the optically active 2--halopropionic acid and the alkyl carboxylate, and the optically active 2--halopropionic acid obtained is separated from the reaction mixture. The optically active products produced are important intermediates for the preparation of plant protectants and pharmaceuticals.

    摘要翻译: PCT No.PCT / EP96 / 00012 Sec。 371日期1997年1月7日 102(e)日期1997年1月7日PCT提交1996年1月4日PCT公布。 公开号WO96 / 22272 日期:1996年7月25日本发明涉及一种制备光学活性2-卤代丙酸的方法,其中使相应的光学活性烷基2-卤代丙酸酯与羧酸在升高的温度下在与 从反应混合物中分离光学活性2-卤代丙酸和羧酸烷基酯的形成物和所得光学活性2-卤代丙酸。 所生产的光学活性产品是制备植物保护剂和药物的重要中间体。

    Preparation of ammonium salts of 3-isopropyl-2, 1,
3-benzothia-diazin-4-one 2,2-dioxide
    3.
    发明授权
    Preparation of ammonium salts of 3-isopropyl-2, 1, 3-benzothia-diazin-4-one 2,2-dioxide 失效
    3-异丙基-2,3-苯并噻唑-4-酮2,2-二氧化铵的铵盐的制备

    公开(公告)号:US5795983A

    公开(公告)日:1998-08-18

    申请号:US894157

    申请日:1997-08-15

    IPC分类号: A01N43/00 C07D285/16

    CPC分类号: C07D285/16

    摘要: A process for preparing salts of 3-isopropyl-2,1,3-benzothia-diazin-4-one 2,2-dioxide of the general formula I ##STR1## (R.sup.1 -R.sup.4 =H, lower alkyl, lower hydroxyalkyl) by reacting bentazone (IIa) with an amine IIIa in an organic solvent, by reacting bentazone (IIa) with an amine IIIa or an ammonium salt IIIb in a virtually water-immiscible organic solvent and taking up the salt I in water or by reacting bentazone (IIa) with an ammonium salt IIIb or bentazone-sodium (IIb) with an ammonium salt IIIc, in each case in water.

    摘要翻译: PCT No.PCT / EP96 / 00420 Sec。 371日期:1997年8月15日 102(e)日期1997年8月15日PCT提交1996年2月1日PCT公布。 WO96 / 25407 PCT出版物 日期:1996年8月22日制备通式Ⅰ(Ⅰ)的3-异丙基-2,1,3-苯并噻吩-2-酮2,2-二氧化物的盐的方法(R1-R4 = H (IIa)与胺IIIa在有机溶剂中反应,通过在实际上与水不混溶的有机溶剂中将苯扎酮(IIa)与胺IIIa或铵盐IIIb反应并吸收盐 或者通过使苯扎酮(IIa)与铵盐IIIb或苯扎他酮钠(IIb)与铵盐IIIc反应,在每种情况下都在水中。

    Isolation of 3-isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide from
waste water from its preparation
    6.
    发明授权
    Isolation of 3-isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide from waste water from its preparation 失效
    从其制备的废水中分离3-异丙基-2,1,3-苯并噻二嗪-4-酮-2,2-二氧化物

    公开(公告)号:US4451378A

    公开(公告)日:1984-05-29

    申请号:US434369

    申请日:1982-10-14

    IPC分类号: C07D285/16 C02F1/54

    CPC分类号: C07D285/16 Y10S210/909

    摘要: 3-Isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide (bentazone) is isolated from waste water, originating from its preparation and working up, by treating the waste water with an acid to bring the pH initially to 7.5-9.5, adding 0.2-0.5% by volume, based on the waste water, of a 40-60 percent strength by weight aqueous bentazone salt solution and heating the mixture for 15-30 minutes at 75.degree.-110.degree. C. The solution thus treated is then cooled and brought to pH 1-3 with a mineral acid, whereupon the bentazone precipitates in a form which can be filtered off.

    摘要翻译: 从废水中分离3-异丙基-2,1,3-苯并噻二嗪-4-酮-2,2-二氧化物(苯达唑酮),起源于其制备和加工,用酸处理废水以使pH 最初为7.5-9.5,以废水为基准添加0.2-0.5体积%的40-60%重量的苯扎酮盐水溶液,并在75-110℃下加热该混合物15-30分钟。 然后将如此处理的溶液用无机酸冷却并使其达到1-3,于是粘多糖以可以滤出的形式沉淀。

    Herbicidal agents containing a thiolcarbamate
    7.
    发明授权
    Herbicidal agents containing a thiolcarbamate 失效
    含有硫代氨基甲酸酯的除草剂

    公开(公告)号:US4249933A

    公开(公告)日:1981-02-10

    申请号:US058259

    申请日:1979-07-17

    摘要: Herbicidal agents containing ethyl-N-ethyl-N-bicyclo-[2.2.1]-hept-2-yl-thiolcarbamate of the formula ##STR1## as herbicidal active ingredient and at least one haloacylamide of the formula ##STR2## where R denotes linear or branched haloalkyl of a maximum of 3 carbon atoms, and R.sup.1 and R.sup.2 are identical or different and each denotes linear or branched alkyl of a maximum of 6 carbon atoms which is unsubstituted or substituted by alkoxy of a maximum of 4 carbon atoms or by cyano, R.sup.1 and R.sup.2 further denote cycloalkyl of 3 to 6 carbon atoms, or linear or branched alkenyl or alkynyl of a maximum of 4 carbon atoms, or R.sup.1 and R.sup.2, together with the nitrogen atom whose substituents they are, form a 4- to 9-membered, saturated monocyclic or bicyclic ring which is unsubstituted or mono- or polysubstituted by linear or branched alkyl of a maximum of 4 carbon atoms, or a tetrahydro-1,3-oxazine ring of the formula ##STR3## where R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are identical or different and each denotes hydrogen or linear or branched alkyl of a maximum of 3 carbon atoms, R.sup.8 denotes hydrogen or linear or branched alkyl of a maximum of 8 carbon atoms, R.sup.9 denotes hydrogen, linear or branched alkyl of a maximum of 8 carbon atoms, alkoxyalkyl of a maximum of 6 carbon atoms or dialkoxyalkyl of a maximum of 8 carbon atoms, or R.sup.8 and R.sup.9 may together form a methylene chain of 4 or 5 carbon atoms, as antagonistic agent.The weight ratio of ethyl-N-ethyl-N-bicyclo-[2.2.1]-hept-2-yl-thiolcarbamate to antagonistic agent is, whether applied together or separately, from 1:1 to 1:0.01.

    摘要翻译: 含有式“IMAGE”的乙基-N-乙基-N-双环[2.2.1] - 庚-2-基 - 硫代氨基甲酸酯作为除草活性成分的除草剂和至少一种式(I')I的卤代酰胺,其中 R表示最多3个碳原子的直链或支链卤代烷基,R1和R2相同或不同,表示最多6个碳原子的直链或支链烷基,未取代或被最多4个碳原子的烷氧基取代 或氰基,R 1和R 2还表示3至6个碳原子的环烷基,或最多4个碳原子的直链或支链烯基或炔基,或者R1和R2与它们取代基的氮原子一起形成4个 至9元饱和的单环或双环,其未被取代或被最多4个碳原子的直链或支链烷基单取代或多取代,或式“IMAGE”的四氢-1,3-恶嗪环,其中R3 ,R4,R5,R6和R7相同或不同,各自表示氢 或最多3个碳原子的直链或支链烷基,R8表示氢或最多8个碳原子的直链或支链烷基,R9表示氢,最多8个碳原子的直链或支链烷基,最大为 6个碳原子或最多8个碳原子的二烷氧基烷基,或R8和R9可以一起形成4或5个碳原子的亚甲基链作为拮抗剂。 乙基-N-乙基-N-双环[2.2.1] - 庚-2-基 - 硫代氨基甲酸乙酯与拮抗剂的重量比无论是一起使用还是单独使用,为1:1至1:0.01。