3,6-二氯-2-甲氧基苯甲酸钠 | 1982-69-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 3,6-二氯-2-甲氧基苯甲酸钠
• 中文别名: 麦草畏钠盐
• CAS: 1982-69-0
• 化学式: C8H6Cl2NaO3
• 分子量: 244.02
• InChiKey: JTWCEBDQIQNHSR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.32
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• [EN] PROCESS FOR PREPARATION OF HERBICIDAL CARBOXYLIC ACID SALTS<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE SELS HERBICIDES D'ACIDE CARBOXYLIQUE
  申请人：ROTAM AGROCHEM INT CO LTD

  公开号：WO2015062286A1

  公开（公告）日：2015-05-07

  A process for preparing a herbicidally active carboxylic acid salt is disclosed, the process comprising the steps of: i) combining a carboxylic acid with a high-boiling, water-immiscible organic solvent to obtain a solution or slurry; ii) treating the solution or slurry produced in step (i) with a base to form a carboxylic acid salt; iii) removing solvent from the mixture produced in step (ii) to obtain a carboxylic acid salt cake; and v) drying the cake obtained in step (iii). The process is particularly suitable for preparing a salt of dicamba. A process for preparing dicamba-sodium comprises: (1) dissolving a carboxylic acid consisting essentially of dicamba in a high-boiling water-immiscible inert organic solvent to get a solution or slurry; (2) treating the dicamba solution or slurry in Step 1 with a base selected from sodium hydroxide, sodium bicarbonate and mixtures thereof, at a molar ratio of 1:0.97±0.6% to form dicamba-sodium; (3) centrifuging the reaction mixture in Step 2 to obtain dicamba-sodium salt cake; and (4) drying the dicamba-sodium cake obtained in Step 3 to get a dry dicamba- sodium consistently having a pH value between about 7 and 10 when dissolved in water.

  公开了一种制备除草活性羧酸盐的方法，该方法包括以下步骤：i）将羧酸与高沸点、不溶于水的有机溶剂混合，以获得溶液或浆糊；ii）用碱处理步骤（i）产生的溶液或浆糊，以形成羧酸盐；iii）从步骤（ii）产生的混合物中去除溶剂，以获得羧酸盐蛋糕；和v）干燥步骤（iii）中获得的蛋糕。该方法特别适用于制备百草枯盐酸盐。制备百草枯-钠的方法包括：（1）将主要由百草枯组成的羧酸溶解于高沸点的不溶于水的惰性有机溶剂中，以获得溶液或浆糊；（2）在1：0.97±0.6％的摩尔比下，用氢氧化钠、碳酸氢钠或其混合物处理步骤1中的百草枯溶液或浆糊，以形成百草枯-钠；（3）离心步骤2中的反应混合物，以获得百草枯-钠盐蛋糕；和（4）干燥步骤3中获得的百草枯-钠蛋糕，以获得在水中溶解时pH值约为7至10的干百草枯-钠。
• HERBICIDAL COMPOSITIONS AND METHODS OF USE
  申请人：Pernak Juliusz

  公开号：US20130109572A1

  公开（公告）日：2013-05-02

  Disclosed are compositions and methods of preparing compositions of active herbicidal ingredients. Also disclosed are methods of using the compositions described herein to improve herbicide delivery and efficacy, enhance herbicidal penetration, reduce herbicide volatility and drift, diminish environmental damage from herbicides, decrease water solubility and volatility of herbicides, and introduce additional biological function to herbicides.

  本发明涉及活性除草成分的组合物和制备方法。同时，本发明还涉及使用所述组合物的方法，以改善除草剂的输送和功效，增强除草剂的渗透性，减少除草剂的挥发和漂移，减少除草剂对环境的损害，降低除草剂的水溶性和挥发性，并为除草剂引入额外的生物功能。
• HERBICIDAL COMPOSITION COMPRISING POLYMERIC MICROPARTICLES CONTAINING A HERBICIDE
  申请人：Formstone Carol

  公开号：US20140221206A1

  公开（公告）日：2014-08-07

  The invention provides a herbicidal composition comprising a mixture of: (a) polymeric microparticles containing a first herbicide, wherein the first herbicide is a synthetic auxin herbicide (e.g. dicamba, MCPA or 2,4-D) or an acetolactate synthase (ALS) inhibitor herbicide (e.g. triasulfuron, tribenuron-methyl, iodosulfuron-methyl, mesosulfuron-methyl, sulfosulfuron, flupyrsulfuron-methyl, or pyroxsulam); wherein the first herbicide, when in a salt-free form and when not contained within polymeric microparticles, antagonises the herbicidal activity of pinoxaden; and (b) pinoxaden; wherein the polymeric microparticles are controlled-release matrices, within which is the first herbicide, and which function in such a way as to control and/or slow down the release of the first herbicide from the polymeric microparticles into a liquid (e.g. aqueous) medium when the polymeric microparticles are placed (e.g. dispersed) in and in contact with the liquid medium. The containing of the first herbicide within the controlled-release polymeric microparticles is thought to mitigate the antagonism of the grass-weed-herbicidal activity of pinoxaden which might otherwise be caused by the first herbicide depending on the circumstances. The invention also provides a method of reducing the antagonistic effect on the control of monocotyledonous weeds in non-oat cereals which is shown by a herbicidal mixture of either a synthetic auxin herbicide with pinoxadenor an ALS inhibitor herbicide with pinoxaden, which comprises applying a herbicidal composition according to the invention. The invention also provides a herbicidal composition comprising (a) polymeric microparticles (e.g. controlled-release matrices), containing a first herbicide as defined above, and either (x) a nonionic surfactant or (y) a surface-modified clay, as defined herein.

  本发明提供了一种除草剂组合物，包括混合物：(a)聚合物微粒，含有第一种除草剂，其中第一种除草剂是合成生长素除草剂（例如，二氯苯氧乙酸、MCPA或2,4-D）或乙酰乳酸合酶（ALS）抑制剂除草剂（例如，三唑磺隆、甲基苯磺隆、碘磺苯甲酯、甲基磺苯甲酯、磺基磺苯甲酯、氟吡磺隆甲酯或吡磺隆）；其中，当第一种除草剂处于无盐形式且不包含在聚合物微粒中时，会对哌唑磷的除草活性产生拮抗作用；和(b)哌唑磷；其中，聚合物微粒是可控释放基质，在其中是第一种除草剂，并且在聚合物微粒放置（例如分散）在与液体介质（例如水性）接触时，从聚合物微粒中释放第一种除草剂的控制和/或减缓释放方式。认为将第一种除草剂包含在可控释放的聚合物微粒中可以缓解第一种除草剂在特定情况下可能引起的对哌唑磷的草杂草除草活性的拮抗作用。本发明还提供了一种减少合成生长素除草剂与哌唑磷或ALS抑制剂除草剂与哌唑磷混合物中单子叶杂草控制的拮抗作用的方法，包括应用本发明中的除草剂组合物。本发明还提供了一种除草剂组合物，包括(a)聚合物微粒（例如，可控释放基质），其中包含上述第一种除草剂，以及(x)非离子表面活性剂或(y)表面改性粘土，如本文所定义。
• LOW VOLATILITY HERBICIDAL COMPOSITIONS
  申请人：MONSANTO TECHNOLOGY LLC

  公开号：US20150264924A1

  公开（公告）日：2015-09-24

  The present invention relates generally low volatility herbicidal compositions comprising at least one auxin herbicide and at least one monocarboxylic acid, or monocarboxylate thereof. The invention further relates generally to methods for preparing and using such low volatility herbicidal compositions, including methods for controlling auxin-susceptible plant growth on agricultural and non-agricultural lands.

  本发明涉及一种低挥发性除草剂组合物，通常包括至少一种生长素除草剂和至少一种单羧酸或其单羧酸盐。本发明进一步涉及一般的制备和使用这种低挥发性除草剂组合物的方法，包括控制农业和非农业土地上生长素敏感植物生长的方法。
• PROCESS FOR PREPARATION OF HERBICIDAL CARBOXYLIC ACID SALTS
  申请人：ROTAM AGROCHEM INTERNATIONAL COMPANY LIMITED; BRISTOW James, Timothy

  公开号：US20160251295A1

  公开（公告）日：2016-09-01

  A process for preparing a herbicidally active carboxylic acid salt is disclosed. The process comprises the steps of: i) combining a carboxylic acid with a high-boiling, water-immiscible organic solvent to obtain a solution or slurry; ii) treating the solution or slurry produced in step (i) with a base to form a carboxylic acid salt; iii) removing solvent from the mixture produced in step (ii) to obtain a carboxylic acid salt cake; and v) drying the cake obtained in step (iii). The process is particularly suitable for preparing a salt of dicamba.

  揭示了一种制备具有除草活性的羧酸盐的过程。该过程包括以下步骤：i)将羧酸与高沸点、不溶于水的有机溶剂混合，以获得溶液或混悬液；ii)用碱处理步骤(i)中产生的溶液或混悬液，形成羧酸盐；iii)从步骤(ii)中产生的混合物中去除溶剂，以获得羧酸盐蛋糕；和v)干燥步骤(iii)中获得的蛋糕。该过程特别适用于制备百草枯的盐。