2-(4-hydroxyphenyl)ethyl benzoate

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(4-hydroxyphenyl)ethyl benzoate
• 英文别名: 2-(4-Hydroxyphenyl)ethyl benzoate
• 化学式: C₁₅H₁₄O₃
• 分子量: 242.274
• InChiKey: JTHYZIBXKQHXHV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-(4-hydroxyphenyl)ethyl benzoate 在 hexamethonium bis(tribromide) 作用下， 以 neat (no solvent) 为溶剂， 反应 0.33h， 以88%的产率得到benzoic acid 2-(3-bromo-4-hydroxyphenyl)ethyl ester
  参考文献：
  名称：

  Hexamethonium bis(tribromide) (HMBTB) a recyclable and high bromine containing reagent

  摘要：

  A recyclable and high bromine containing di-(tribromide) reagent, hexamethonium bis(tribromide) (HMBTB) has been synthesized and utilized for the bromination of various organic substrates. The spent reagent hexamethonium bromide (HMB) can be effectively recycled by regenerating and reusing it without significant loss of activity. The crystalline and stable bis(tribromide) is an effective storehouse of very high percentage of active bromine requiring just half an equivalent of it for complete bromination. Both the Br-3(-) moieties in HMBTB are nearly linear with Br-Br-Br angle of 179.55 degrees. Published by Elsevier Ltd.

  DOI：

  10.1016/j.tetlet.2015.08.063
• 作为产物：
  描述：

  在 sodium phosphate dodecahydrate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.5h， 以90%的产率得到2-(4-hydroxyphenyl)ethyl benzoate
  参考文献：
  名称：

  磷酸盐促进芳基叔丁基二甲基甲硅烷基醚的化学选择性脱保护

  摘要：

  摘要 描述了使用 Na3PO4·12H2O 作为促进剂对芳基叔丁基二甲基甲硅烷基 (TBDMS) 醚进行化学选择性脱保护的简便方案。从芳基 TBDMS 醚到相应的酚类，在室温下，在二甲基甲酰胺中存在 0.5 当量 Na3PO4·12H2O 的情况下，TBDMS 基团可以被裂解，在其他常见保护基团和官能团存在的情况下，收率良好至极好。还发现 K3PO4·3H2O 可用于选择性脱保护反应。据我们所知，这是使用磷酸盐对芳基 TBDMS 醚进行化学选择性脱保护的第一份报告。图形概要

  DOI：

  10.1080/00397911.2010.523859

文献信息

• Mild and practical acylation of alcohols with esters or acetic anhydride under distannoxane catalysis
  作者：Akihiro Orita、Katsumasa Sakamoto、Yuji Hamada、Akihiro Mitsutome、Junzo Otera

  DOI：10.1016/s0040-4020(99)00072-1

  日期：1999.3

  Distannoxane catalysts effect acylation of alcohols by action of esters and acetic anhydride. In particular, use of enol esters provides an extremely useful method. Primary alcohols are acylated in preference to secondary ones as well as phenol. Both acid- and base-sensitive functional groups remain intact. Especially unique is the discrimination of thio function which is completely tolerant under

  二锡氧烷催化剂通过酯和乙酸酐的作用实现醇的酰化。特别地，使用烯醇酯提供了非常有用的方法。伯醇优先于仲醇和苯酚被酰化。对酸和碱敏感的官能团均保持完整。尤其独特的是在当前反应条件下完全耐受的硫官能团的鉴别。由于操作非常简单，因此该方法非常实用。无需纯化即可使用酯类和溶剂，并且不需要惰性气氛。可以简单地通过柱色谱法或蒸馏来分离产物，而无需进行水后处理。
• μ-Oxo-Dinuclear-Iron(III)-Catalyzed O-Selective Acylation of Aliphatic and Aromatic Amino Alcohols and Transesterification of Tertiary Alcohols
  作者：Rikiya Horikawa、Chika Fujimoto、Ryo Yazaki、Takashi Ohshima

  DOI：10.1002/chem.201602801

  日期：2016.8.22

  A highly chemoselective and reactive μ‐oxo‐dinuclear iron(III) salen catalyst for transesterification was developed. The developed iron complex catalyzed acylation of aliphatic amino alcohols with nearly perfect O‐selectivity, even when using activated esters, for which chemoselectivity is more difficult to control. In addition, O‐selective transesterification of aromatic amino alcohols was achieved

  开发了一种用于酯交换反应的高度化学选择性和反应性的μ-氧-双核铁（III）salen催化剂。发达的铁络合物催化脂肪族氨基醇的酰化反应，具有几乎完美的O选择性，即使使用活化酯，其化学选择性也更难控制。此外，首次实现了芳族氨基醇的O选择性酯交换。铁络合物的高活性使得能够使用空间上充斥的叔醇，包括前所未有的叔丁醇。
• Novel Brønsted acidic deep eutectic solvent as reaction media for esterification of carboxylic acid with alcohols
  作者：Valerio De Santi、Fabio Cardellini、Lucia Brinchi、Raimondo Germani

  DOI：10.1016/j.tetlet.2012.07.063

  日期：2012.9

  New halogen-free Brønsted acidic deep eutectic solvents (DES) have been prepared by mixing new quaternary ammonium methanesulfonate salts with p-toluenesulfonic acid (PTSA). They have been used as dual solvent-catalyst for esterification of several carboxylic acids with different alcohols with a reagent molar ratio of 1:1. The method is mild, safe, and simple. Ease of recovery and reusability of DES

  通过将新的甲磺酸季铵盐与对甲苯磺酸（PTSA）混合，可以制备出新的无卤布朗斯台德酸性深共熔溶剂（DES ）。它们已用作双重溶剂催化剂，用于试剂摩尔比为1：1的几种羧酸与不同醇的酯化反应。该方法温和，安全且简单。高活性的DES易于恢复和可重复使用，使该方法高效且环保。为了通过良好的收率获得各种酯，进行了通过阳离子变化获得的DES性质的可调性。
• Organocatalytic selective benzoylation of alcohols with trichloromethyl phenyl ketone: inverse selectivity in benzoylation of alcohols containing phenol or aromatic amine functionality
  作者：Ram N. Ram、Vineet Kumar Soni、Dharmendra Kumar Gupta

  DOI：10.1016/j.tet.2012.08.051

  日期：2012.11

  organocatalyst at room temperature in high yields and excellent selectivity. It also shows the potential to selectively benzoylate primary alcoholic groups of aminoarylalkanols and primary-secondary diols as well as primary amino group of alkyl amines in the presence of aryl amines under similar conditions. A rationale for the selectivity and efficiency of the reaction has been provided.

  在室温下，当2-10 mol％的PMDETA有机催化剂存在时，三氯甲基苯基酮苯甲酸酯化还含有酚基的化合物中的伯和仲脂肪醇基团，具有很高的收率和优异的选择性。它也显示了在类似条件下在芳基胺存在下选择性地苯甲酰化氨基芳基链烷醇和伯-仲二醇的伯醇基以及烷基胺的伯氨基的潜力。已经提供了反应的选择性和效率的原理。
• A New Recyclable Ditribromide Reagent for Efficient Bromination under Solvent Free Condition
  作者：Veerababurao Kavala、Sarala Naik、Bhisma K. Patel

  DOI：10.1021/jo050059u

  日期：2005.5.1

  1,2-Dipyridiniumditribromide-ethane (DPTBE) has been synthesized and explored as a new efficient brominating agent. The crystalline ditribromide reagent is stable for months and acts as a safe source of bromine requiring just 0.5 equiv for complete bromination. It has high active bromine content per molecule and shows a remarkable reactivity compared to other tribromide reagents toward various substrates by just grinding the reagent and substrates in a porcelain mortar at room temperature. No organic solvent has been used during any stage of the reaction for substrates giving product as solid. Product can easily be isolated by just washing the highly water soluble 1,2-dipyridiniumdibromide-ethane (DPDBE) from the brominated product. The spent reagent can be recovered, regenerated, and reused without any significant loss.