5-氯-4-羟基邻苯二酚 | 119290-91-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 5-氯-4-羟基邻苯二酚
• 英文名称: 5-chloro-2-hydroxy-p-hydroquinone
• 英文别名: 5-chloro-1,2,4-trihydroxybenzene；5-chloro-1,2,4-benzenetriol；5-Cl-2H-HQ；5-Chlor-1,2,4-trihydroxy-benzol；5-Chlorobenzene-1,2,4-triol
• CAS: 119290-91-4
• 化学式: C₆H₅ClO₃
• mdl: MFCD11226216
• 分子量: 160.557
• InChiKey: RSJCPOVKDYSWAP-UHFFFAOYSA-N

物化性质

• 熔点：
  117 °C
• 沸点：
  338.6±22.0 °C(Predicted)
• 密度：
  1.660±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  60.7
• 氢给体数：
  3
• 氢受体数：
  3

安全信息

• 危险性防范说明：
  P501,P270,P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313,P301+P312+P330
• 危险性描述：
  H302,H315,H319

反应信息

• 作为反应物：
  描述：

  5-氯-4-羟基邻苯二酚 在 过氧乙酸 、 iron(III) acetate 作用下， 以 溶剂黄146 为溶剂， 反应 1.0h， 生成 (E)-3-Chloro-4-oxo-hex-2-enedioic acid
  参考文献：
  名称：

  Photocatalytic Degradation of 4-Chlorophenol. 2. The 4-Chlorocatechol Pathway

  摘要：

  The TiO2-mediated photocatalytic degradation of 4-chlorocatechol is studied as a branch of the degradation of 4-chlorophenol. In addition to some basic kinetic studies, the identities of many of the cyclic and acyclic intermediates, verified in most cases with authentic samples, are reported. From 4-chlorocatechol, the major product is hydroxylation to form 5-chloro-1,2,4-benzenetriol. A small amount of 4-chloropyrogallol is also produced. Substitution to give 1,2,4-benzenetriol is observed as is oxidative cleavage of the C1-C2 bond to give the diacid. The major products of all of the triols are those of oxidative cleavages, occurring mainly between ortho hydroxy-substituted carbons to give diacids but also between one hydroxy and one unsubstituted carbon to give acid-aldehydes. Many smaller intermediates in the degradations are identified, and pathways are proposed for the larger compounds.

  DOI：

  10.1021/jo990912n
• 作为产物：
  描述：

  1,2,4-苯三酚 在 磺酰氯 作用下， 以 乙醚 为溶剂， 反应 27.0h， 以65%的产率得到5-氯-4-羟基邻苯二酚
  参考文献：
  名称：

  Photocatalytic Degradation of 4-Chlorophenol. 2. The 4-Chlorocatechol Pathway

  摘要：

  The TiO2-mediated photocatalytic degradation of 4-chlorocatechol is studied as a branch of the degradation of 4-chlorophenol. In addition to some basic kinetic studies, the identities of many of the cyclic and acyclic intermediates, verified in most cases with authentic samples, are reported. From 4-chlorocatechol, the major product is hydroxylation to form 5-chloro-1,2,4-benzenetriol. A small amount of 4-chloropyrogallol is also produced. Substitution to give 1,2,4-benzenetriol is observed as is oxidative cleavage of the C1-C2 bond to give the diacid. The major products of all of the triols are those of oxidative cleavages, occurring mainly between ortho hydroxy-substituted carbons to give diacids but also between one hydroxy and one unsubstituted carbon to give acid-aldehydes. Many smaller intermediates in the degradations are identified, and pathways are proposed for the larger compounds.

  DOI：

  10.1021/jo990912n

文献信息

• COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING SAME
  申请人：Toray Industries, Inc.

  公开号：EP2517782A1

  公开（公告）日：2012-10-31

  A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide layer (a B surface), i.e., the opposite side to the A surface, is in the range of 0.5 to 1. The present invention provides a composite semipermeable membrane that achieves a balance between high solute removal properties and a high permeate flow rate and has high organic-solvent resistance, and a method for producing same.

  一种复合半透膜，包括多孔支撑膜，在支撑膜上形成由多官能团芳香胺与多官能团酸卤化物缩聚反应生成的分离功能聚酰胺层，其中分离功能聚酰胺层具有羧基、氨基、酚羟基和偶氮基团，其中XA，氨基的比例（氨基的摩尔当量/偶氮基团的摩尔当量+酚羟基的摩尔当量+偶氮基团的摩尔当量）、和偶氮基团，其中 XA，在分离功能聚酰胺层的进料水接触表面（A 表面）上的氨基比例（氨基的摩尔当量/（偶氮基团的摩尔当量+酚羟基的摩尔当量+氨基的摩尔当量））在 0.5 或更低，而 XB，即分离功能聚酰胺层的渗透侧表面（B 表面），即与 A 表面相反的一侧的氨基比率（氨基的摩尔当量/（偶氮基的摩尔当量+酚羟基的摩尔当量+氨基的摩尔当量））、本发明提供了一种能在高溶质去除性能和高渗透流速之间取得平衡并具有高有机溶剂耐受性的复合半透膜，以及生产该膜的方法。
• Production of ordered mesoporous carbon materials
  申请人：Sharif Sheikhaleslami Seyyed Mohammad Ali

  公开号：US10081548B2

  公开（公告）日：2018-09-25

  A precursor composition is provided, including a templating component having a block copolymer, a phenolic compound, a cross-linkable aldehyde component, and a graphitizing agent including a polyaromatic hydrocarbon (PAH). The precursor composition is polymerized to form a polymerized carbonization precursor. The polymerized carbonization precursor is carbonized to form a mesoporous carbon material.

  提供了一种前体组合物，包括具有嵌段共聚物的模板组分、酚类化合物、可交联醛组分和包括聚芳烃 (PAH) 的石墨化剂。前驱体组合物经聚合后形成聚合碳化前驱体。聚合碳化前体经碳化后形成介孔碳材料。
• Modulation of ion transport in a liquid by application of an electric potential on a mesoporous carbon membrane
  申请人：UT-Battelle, LLC

  公开号：US10392272B2

  公开（公告）日：2019-08-27

  A method for regulating ion transport between first and second regions of a liquid solution containing ionic species in at least one of said first and second regions, the method comprising applying a voltage on an electrically conductive mesoporous carbon membrane situated between said first and second regions of the liquid solution, wherein liquid flow between first and second regions is permitted only through said mesoporous carbon membrane, and the applied voltage is selected to modulate the degree of ion transport between said first and second regions, wherein an increase in applied voltage results in a reduction in the degree of ion transport between said first and second regions, optionally up to a critical voltage at which ion transport ceases.

  一种用于调节第一和第二区域之间离子传输的方法，所述第一和第二区域中至少有一个区域含有离子物种，该方法包括在位于所述第一和第二区域之间的导电介孔碳膜上施加电压、其中，第一和第二区域之间的液体流动只允许通过所述介孔碳膜，施加电压的选择是为了调节所述第一和第二区域之间的离子传输程度，其中，施加电压的增加会导致所述第一和第二区域之间的离子传输程度降低，可以选择达到临界电压，在该电压下离子传输停止。
• Characterization of Chlorophenol 4-Monooxygenase (TftD) and NADH:FAD Oxidoreductase (TftC) of Burkholderia cepacia AC1100
  作者：Brian N. Webb、Jordan W. Ballinger、Eunjung Kim、Sara M. Belchik、Ka-Sum Lam、Buhyun Youn、Mark S. Nissen、Luying Xun、ChulHee Kang

  DOI：10.1074/jbc.m109.056135

  日期：2010.1

  Burkholderia cepacia AC1100 completely degrades 2,4,5-trichlorophenol, in which an FADH(2)-dependent monooxygenase (TftD) and an NADH: FAD oxidoreductase (TftC) catalyze the initial steps. TftD oxidizes 2,4,5-trichlorophenol (2,4,5-TCP) to 2,5-dichloro-p-benzoquinone, which is chemically reduced to 2,5-dichloro-p-hydroquinone (2,5-DiCHQ). Then, TftD oxidizes the latter to 5-chloro-2-hydroxy-p-benzoquinone. In those processes, TftC provides all the required FADH(2). We have determined the crystal structures of dimeric TftC and tetrameric TftD at 2.0 and 2.5 angstrom resolution, respectively. The structure of TftC was similar to those of related flavin reductases. The stacked nicotinamide: isoalloxazine rings in TftC and sequential reaction kinetics suggest that the reduced FAD leaves TftC after NADH oxidation. The structure of TftD was also similar to the known structures of FADH(2)-dependent monooxygenases. Its His-289 residue in the re-side of the isoalloxazine ring is within hydrogen bonding distance with a hydroxyl group of 2,5-DiCHQ. An H289 A mutation resulted in the complete loss of activity toward 2,5-DiCHQ and a significant decrease in catalytic efficiency toward 2,4,5-TCP. Thus, His-289 plays different roles in the catalysis of 2,4,5-TCP and 2,5-DiCHQ. The results support that free FADH(2) is generated by TftC, and TftD uses FADH(2) to separately transform 2,4,5-TCP and 2,5-DiCHQ. Additional experimental data also support the diffusion of FADH(2) between TftC and TftD without direct physical interaction between the two enzymes.
• MESOPOROUS CARBON MATERIALS
  申请人：Dai Sheng

  公开号：US20130183511A1

  公开（公告）日：2013-07-18

  A conductive mesoporous carbon composite comprising conductive carbon nanoparticles contained within a mesoporous carbon matrix, wherein the conductive mesoporous carbon composite possesses at least a portion of mesopores having a pore size of at least 10 nm and up to 50 nm, and wherein the mesopores are either within the mesoporous carbon matrix, or are spacings delineated by surfaces of said conductive carbon nanoparticles when said conductive carbon nanoparticles are fused with each other, or both. Methods for producing the above-described composite, devices incorporating them (e.g., lithium batteries), and methods of using them, are also described.