1-氯-2-(1,2-乙二醇)苯 | 59365-60-5

• 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: 1-氯-2-(1,2-乙二醇)苯
• 英文名称: 1-(2-chlorophenyl)ethane-1,2-diol
• 英文别名: 1-(2-chlorophenyl)-1,2-ethanediol；(DL)-o-chlorophenyl-1,2-ethanediol；1,2-Ethanediol, 1-(2-chlorophenyl)-
• CAS: 59365-60-5
• 化学式: C₈H₉ClO₂
• 分子量: 172.611
• InChiKey: YGOPULMDEZVJGI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-氯-2-(1,2-乙二醇)苯 在 叔丁基过氧化氢 、 potassium tert-butylate 作用下， 以 水 为溶剂， 反应 8.0h， 以90%的产率得到2-氯苯甲酸
  参考文献：
  名称：

  Efficient method for the oxidation of aldehydes and diols with tert-butylhydroperoxide under transition metal-free conditions

  摘要：

  An efficient, mild, and simple protocol is presented for the oxidation of aldehydes and diols to carboxylic acids utilizing 70% aq TBHP as oxidant and t-BuOK as additive. The oxidation of aldehydes could be achieved by two methods under aqueous medium. Excellent yields of products were obtained in short reaction times. Notably, the products were isolated by simple filtration technique and do not involve chromatographic separation. These reactions may prove to be valuable alternatives to traditional metal-mediated oxidations. Oxidation does not require any transition metals or organic solvents in reaction, making this protocol green. (c) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.07.101
• 作为产物：
  描述：

  2-氯苯基环氧乙烷 在 Tris-HCl buffer 作用下， 反应 24.0h， 生成 1-氯-2-(1,2-乙二醇)苯
  参考文献：
  名称：

  Preparation of (S)-2-, 3-, and 4-chlorostyrene oxides with the epoxide hydrolase from Sphingomonas sp. HXN-200

  摘要：

  The epoxide hydrolase from Sphingomonas sp. HXN-200 catalyzed the enantio selective hydrolysis of racemic 2-, 3-, and 4-chlorostyrene oxides 1-3 to form the corresponding (R)-diols and gave the (S)-epoxides 1-3 in high ee. The reactions were examined with frozen/thawed cells as well as cell-free extracts of Sphingomonas sp. HXN-200 as catalysts in an aqueous, and a two-liquid phase system, respectively. Biotransformation in the two-liquid phase system containing n-hexane as an organic phase showed a higher enantioselectivity than that in the single aqueous phase, due to the reduced non-enzymatic hydrolysis. Hydrolysis of 60 mM 2-chlorostyrene oxide I gave 31.3% of (S)-2-chlorostyrene oxide I in 98.8% ee with an enantioselectivity factor (E) of 12; hydrolysis of 100 mM 4-chlorostyrene oxide 3 afforded 30.8% of (S)-4-chlorostyrene oxide 3 with 98.6% ee with an E-value of 11. The best results were obtained with the hydrolysis of 3-chlorostyrene oxide 2: biotransformation with 100 mM substrate gave 44.0% of (S)-3-chloro styrene oxide 2 in 99.0% ee with an E-value of 41; such enantioselectivity is much higher than that of any other known epoxide hydrolases for this reaction; preparative biotransformation demonstrated the efficient synthesis of (S)-3-chlorostyrene oxide 2, an intermediate for the preparation of an IGF-IR kinase inhibitor BMS-536924, with 99.1% ee and 41% isolated yield. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.12.019

文献信息

• Heterogeneous carbon nitride photocatalyst for C–C bond oxidative cleavage of vicinal diols in aerobic micellar medium
  作者：Tengfei Niu、Shengjun Chen、Mei Hong、Tianhao Zhang、Jiayang Chen、Xinyu Dong、Bangqing Ni

  DOI：10.1039/d0gc01727b

  日期：——

  A green and efficient visible-light promoted aerobic oxidative C–C bond cleavage of vicinal diols in micellar medium has been developed. This protocol used graphitic carbon nitride with nitrogen vacancies (CN620) as a metal-free recyclable photocatalyst and CTAB as surfactant in water. Control experiments and the ESR results indicated that superoxide radicals and valence band holes played an important

  已经开发了绿色高效的可见光促进胶束介质中邻二醇的好氧氧化C–C键裂解。该协议使用具有氮空位的石墨氮化碳（CN620）作为无金属可循环使用的光催化剂，而CTAB作为水中的表面活性剂。对照实验和ESR结果表明，超氧自由基和价带孔在反应中起重要作用。进一步的同位素实验提出了反应的β-分裂/ HAT途径和氧化/水解/脱水途径，这与以前的报道不同。半导体/胶束催化剂体系可以循环使用至少10次，而不会显着降低活性。此外，
• Structurally Defined Molecular Hypervalent Iodine Catalysts for Intermolecular Enantioselective Reactions
  作者：Stefan Haubenreisser、Thorsten H. Wöste、Claudio Martínez、Kazuaki Ishihara、Kilian Muñiz

  DOI：10.1002/anie.201507180

  日期：2016.1.4

  Molecular structures of the most prominent chiral non‐racemic hypervalent iodine(III) reagents to date have been elucidated for the first time. The formation of a chirally induced supramolecular scaffold based on a selective hydrogen‐bonding arrangement provides an explanation for the consistently high asymmetric induction with these reagents. As an exploratory example, their scope as chiral catalysts

  迄今为止，最著名的手性非外消旋高价碘 (III) 试剂的分子结构首次得到阐明。基于选择性氢键排列的手性诱导超分子支架的形成为这些试剂持续高不对称诱导提供了解释。作为一个探索性的例子，它们作为手性催化剂的范围扩展到了烯烃的对映选择性双氧化。一系列末端苯乙烯在温和条件下转化为相应的邻位双乙酰氧基化产物，并为碘（I/III）催化下真正的分子间不对称烯烃氧化提供了原理证明。
• Selective monochlorination of unsymmetrical vicinal diols with chlorinated iminium chlorides
  作者：Liqun Yang、Xiaotong Li、Yu Wang、Chengyang Li、Xiaoyu Wu、Zhaoguo Zhang、Xiaomin Xie

  DOI：10.1016/j.tet.2020.131114

  日期：2020.4

  Chlorinated iminium chlorides have been identified to promote the highly efficient and selective mono-chlorination of unsymmetrical vicinal diols. Vilsmeier reagent, namely, (chloromethylene)dimethyliminium chloride, enables highly reactive and regioselective chlorination of 1,2- and 1,3-diols featured one secondary benzylic hydroxy group and one primary aliphatic hydroxy group to give the corresponding

  已发现氯化亚胺氯化物可促进不对称邻位二醇的高效和选择性单氯化。Vilsmeier试剂，即（氯亚甲基）二甲基亚胺氯化物，能够对具有一个仲苄基羟基和一个伯脂族羟基的1,2-和1,3-二醇进行高反应性和区域选择性氯化，从而生成相应的1,2-和1 ，3-氯代醇。Viehe盐（α，α-二氯亚胺盐）显示出出色的反应性和邻邻二醇的良好选择性，可以通过环状中间体就地生成相应的氯醇氨基甲酸酯。氯化方案可耐受各种官能团，包括卤素，萘环，硝基和氰基。此外，在该氯化反应过程中可以保持手性二醇的光学纯度。
• Selective reduction of aldehydes and ketones to alcohols with ammonia borane in neat water
  作者：Lei Shi、Yingying Liu、Qingfeng Liu、Bin Wei、Guisheng Zhang

  DOI：10.1039/c2gc00006g

  日期：——

  Chemoselective reduction of various carbonyl compounds to alcohols with ammonia borane (AB), a nontoxic, environmentally benign, and easily handled reagent, in neat water was achieved in quantitative conversions and high isolated yields. Interestingly, α- and β-keto esters were selectively reduced to corresponding hydroxyl esters by AB, while diols were obtained when sodium borohydride was used as

  化学选择性 减少 各种 羰基化合物 到 酒类 纯净的氨硼烷（AB），一种无毒，对环境无害且易于处理的试剂 水通过定量转化和高分离收率实现了这一目标。有趣的是，α-和β-酮基酯类 被AB选择性还原为相应的羟基酯，而 二醇类 是在什么时候获得的 硼氢化钠 被用作 还原剂。该方法还与多种碱不稳定的保护基的存在兼容，例如甲苯磺酰， 乙酰基， 苯甲酰基，酯基和酸不稳定的保护基，例如 三苯甲基 和TBDMS基团，以及其他基团，例如不饱和双键， 硝基的和氰基。最后，一公斤的反应苯甲酰甲酸酯 与AB进行了 水 并给了 扁桃酸甲酯 收率达94％。
• Aerobic oxidation of alcohols with air catalyzed by decacarbonyldimanganese
  作者：Shan-Shui Meng、Li-Rong Lin、Xiang Luo、Hao-Jun Lv、Jun-Ling Zhao、Albert S. C. Chan

  DOI：10.1039/c9gc02446h

  日期：——

  The oxidation of alcohols to carbonyl compounds using air as the terminal oxidant is highly desirable. As described in previous reports, the abstraction of α-H of the alcohol is the most important step, and it typically requires not only a metal catalyst but also complex ligands, co-catalysts and bases. Herein, we report a practical and efficient method for the oxidation of primary alcohols, secondary

  非常需要使用空气作为末端氧化剂将醇氧化为羰基化合物。如先前的报告所述，醇的α-H的提取是最重要的步骤，通常不仅需要金属催化剂，还需要复杂的配体，助催化剂和碱。在这里，我们报告了一种实用有效的方法，可使用市售催化剂Mn 2（CO）10氧化伯醇，仲醇，1,2-二醇，1,2-氨基醇和其他α-官能化醇，并且没有添加剂。初步的机理研究表明，我们的系统中存在烷氧基自由基中间体，并提出了与实验结果和文献相符的合理机理。