2,3,4-三氯苯甲酸 | 50-75-9

• 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: 2,3,4-三氯苯甲酸
• 中文别名: 2,4-二氯-6-正-丙氧基-1,3,5-三嗪
• 英文名称: 2,3,4-trichlorobenzoic acid
• 英文别名: 2,3,4-Trichlor-benzoesaeure
• CAS: 50-75-9
• 化学式: C₇H₃Cl₃O₂
• 分子量: 225.459
• InChiKey: ALLSOOQIDPLIER-UHFFFAOYSA-N

物化性质

• 熔点：
  187-188 °C
• 沸点：
  340.3±37.0 °C(Predicted)
• 密度：
  1.635±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 海关编码：
  2916399090
• 储存条件：
  室温

反应信息

• 作为反应物：
  描述：

  2,3,4-三氯苯甲酸 在 manganese(IV) oxide 、 diborane(6) 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 24.0h， 生成 2,3,4-trichlorobenzaldehyde
  参考文献：
  名称：

  Inhibitors of phenylethanolamine N-methyltransferase and epinephrine biosynthesis. 1. Chloro-Substituted 1,2,3,4-tetrahydroisoquinolines

  摘要：

  In a search for inhibitors of epinephrine biosynthesis as potential therapeutic agents, a series of 13 ring-chlorinated 1,2,3,4-tetrahydroisoquinolines was prepared. These compounds were tested initially for their ability to inhibit rabbit adrenal phenylethanolamine N-methyltransferase (PNMT) in vitro. Enzyme-inhibitor dissociation constants, determined for the six most potent members of the series, indicated the following order of decreasing potency: 7,8-Cl2 greater than 6,7,8-Cl3 greater than 7-Cl approximately 5,6,7,8-Cl4 greater than 5,7,8-Cl3. These compounds were subsequently examined for PNMT-inhibiting activity in intact rats and mice. 7,8-Dichloro-1,2,3,4-tetrahydroisoquinoline (13, SK&F 64139) was the most potent member of the series both in vitro and in vivo and is currently undergoing clinical investigation.

  DOI：

  10.1021/jm00179a007
• 作为产物：
  描述：

  2,3,4-三氯甲苯 在 硝酸 作用下， 生成 2,3,4-三氯苯甲酸
  参考文献：
  名称：

  Cohen; Dakin, Journal of the Chemical Society, 1902, vol. 81, p. 1329

  摘要：

  DOI：

文献信息

• Proton Mobility in 2-Substituted 1,3-Dichlorobenzenes: “ortho” or “meta” Metalation?
  作者：Manfred Schlosser、Christophe Heiss、Elena Marzi、Rosario Scopelliti

  DOI：10.1002/ejoc.200600350

  日期：2006.10

  Nine 1,3-dichlorobenzene congeners were selected as model compds. to assess the relative rates of proton abstraction from 4- and 5-positions ("ortho" vs. "meta" metalation). Using lithium 2,2,6,6-tetramethylpiperidide as the basic reagent, the chlorine-adjacent 4-position underwent metalation exclusively. In contrast, attack at the chlorine-remote 5-position became significant even in the case of moderately

  选择九个 1,3-二氯苯同系物作为模型化合物。评估从 4 位和 5 位（“邻位”与“元”金属化）提取质子的相对速率。使用 2,2,6,6-四甲基哌啶锂作为碱性试剂，4 位氯附近专门进行金属化。相比之下，当使用仲丁基锂时，即使在中等大小的 2-取代基（如二甲氨基或乙基）的情况下，对氯远程 5-位的攻击也变得显着。“邻位/对位”(4-/5-) 比率范围为 80:20 至 65:35。与碳取代基相反，硅更显着的“元取向”效应可归因于芳族的 pi 极化的不同。戒指。[在 SciFinder (R) 上]
• Systematic Variation of Ligand and Cation Parameters Enables Site-Selective C–C and C–N Cross-Coupling of Multiply Chlorinated Arenes through Substrate–Ligand Electrostatic Interactions
  作者：William A. Golding、Hendrik L. Schmitt、Robert J. Phipps

  DOI：10.1021/jacs.0c11056

  日期：2020.12.30

  related sulfonated phosphine ligands and five bases, each possessing varying cation size, to the challenge of site-selective cross-coupling of multiply chlorinated arenes. The fine tuning provided by these ligand/base combinations is effective for Suzuki-Miyaura coupling and Buchwald-Hartwig coupling on a range of isomeric dichlorinated and trichlorinated arenes, substrates that would produce intractable

  使用配体和底物之间有吸引力的非共价相互作用是控制位置选择性的新兴策略。一个关键问题涉及是否可以使用通常较少定向的静电相互作用来实现对具有多个紧密间隔的反应位置的分子的精细控制。在这里，我们应用了一个由两个密切相关的磺化膦配体和五个碱基组成的 10 件“工具包”，每个碱基都具有不同的阳离子大小，以应对多氯化芳烃的位点选择性交叉偶联的挑战。这些配体/碱基组合提供的微调对于 Suzuki-Miyaura 偶联和 Buchwald-Hartwig 偶联对一系列异构二氯化和三氯化芳烃是有效的，这些底物在使用典型配体时会产生难以处理的混合物。
• The effect of chlorine and fluorine substitutions on tuning the ionization potential of benzoate-bridged paddlewheel diruthenium(<scp>ii</scp>, <scp>ii</scp>) complexes
  作者：Wataru Kosaka、Masahisa Itoh、Hitoshi Miyasaka

  DOI：10.1039/c5dt00505a

  日期：——

  A series of paddlewheel diruthenium(ii, ii) complexes with various chlorine- and fluorine-substituted benzoate ligands was summarized in viewpoints of their electrochemistry and HOMO level.

  一系列带有不同氯和氟取代苯甲酸配体的双钌（II，II）桨轮配合物的电化学和HOMO能级观点被总结了。
• Synthesis and antimicrobial activities of some new triazolothiadiazoles bearing 4-methylthiobenzyl moiety
  作者：D. Jagadeesh Prasad、Mithun Ashok、Prakash Karegoudar、Boja Poojary、B. Shivarama Holla、Nalilu Sucheta Kumari

  DOI：10.1016/j.ejmech.2008.03.025

  日期：2009.2

  synthesized by condensing 4-amino-3-[4-methylthiobenzyl]-4H-1,2,4-triazole-5-thiol (5) with substituted aryl furoic acids/aromatic acids in the presence of POCl3. The triazole (5) was obtained by the fusion of 4-methylthiophenyl acetic acid (4) with thiocarbohydrazide. The structures of newly synthesized compounds are characterized by elemental analysis, IR, 1H NMR and mass spectroscopic studies and were screened

  通过将4-氨基-3- [4-甲基硫代苄基] -4 H -1,2,4-三唑-5-硫醇（5）与取代基缩合，合成了一系列取代的三唑并二唑（6a – j和7a – j）。POCl 3存在下的芳基糠酸/芳酸。通过使4-甲基硫代苯基乙酸（4）与硫代碳酰肼熔融，得到三唑（5）。 通过元素分析，IR，1 H NMR和质谱研究对新合成化合物的结构进行表征，并筛选其抗菌活性。初步结果表明，某些化合物显示出有希望的抗菌活性。
• PROCESS FOR PRODUCING AMINOALKYLSULFONIC ACID AND METHOD OF SALT EXCHANGE FOR SALT THEREOF
  申请人：Wako Pure Chemical Industries, Ltd.

  公开号：EP1548002A1

  公开（公告）日：2005-06-29

  The present invention relates to a method for efficiently producing an aminoalkylsulfonic acid in an industrial scale, and provides    "a process for producing an aminoalkylsulfonic acid represented by the general formula [2]:    wherein R1 and R2 are each independently a hydrogen atom, an alkyl group, an aryl group or an aralkyl group; and R3 and R4 are each independently a hydrogen atom or an alkyl group, comprising reacting an aminoalkylsulfonate salt represented by the general formula [1]:    wherein M is an alkali metal atom, an organic ammonium ion or an ammonium ion; and R1 to R4 are the same as described above,    an aqueous solution thereof, or a solution dissolving any one of them in a water-soluble organic solvent, selected from alcohols having 1 to 3 carbon atoms, carboxylic acids having 2 to 12 carbon atoms and dimethylformamide, with an organic acid; and    a method of salt exchange for an aminoalkylsulfonate salt represented by the general formula [1']:    wherein M' is an alkali metal atom, an organic ammonium ion or an ammonium ion; and R1 and R4 are the same as described above, comprising reacting an aminoalkylsulfonate salt represented by the above general formula [2] with a hydroxide represented by the general formula [6]:         M'OH     [6]    wherein M' is the same as described above, in an alcohol or water".

  本发明涉及一种在工业规模上高效生产氨基磺酸的方法，并提供“一种生产由通式[2]表示的氨基磺酸的方法：其中R1和R2分别是氢原子、烷基、芳基或芳基烷基；R3和R4分别是氢原子或烷基的氨基磺酸盐发生反应所得的方法，通式[1]表示如下：其中M是碱金属原子、有机铵离子或铵离子；R1至R4与上述相同，其水溶液或将任何一种溶解于水溶性有机溶剂中的溶液，所选的有1至3个碳原子的醇、有2至12个碳原子的羧酸和二甲基甲酰胺，与有机酸反应；以及氨基磺酸盐交换的方法，通式[1']表示如下：其中M'是碱金属原子、有机铵离子或铵离子；R1和R4与上述相同，包括将上述通式[2]表示的氨基磺酸盐与通式[6]表示的氢氧化物发生反应：M'OH [6]其中M'与上述相同，在醇或水中”。