2,6-dibromo-4-(2-hydroxyethyl)phenol

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 2,6-dibromo-4-(2-hydroxyethyl)phenol
• 化学式: C₈H₈Br₂O₂
• mdl: MFCD27939847
• 分子量: 295.958
• InChiKey: WHTOEXMWXOHKGG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  12
• 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：

  2,6-dibromo-4-(2-hydroxyethyl)phenol 在 吡啶 、 Oxone 、 potassium carbonate 、 sodium bromide 、 copper(I) bromide 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 生成 4,5,6,7-tetramethoxybenzofuran
  参考文献：
  名称：

  Simple and efficient synthesis of benzofuran derivatives from tyrosol

  摘要：

  A convenient strategy for the preparation of compounds bearing the benzofuran skeleton starting from tyrosol, a phenol largely present in olive oil production waste, with no biological importance, is reported. A bromination/methoxylation sequence, already described for the synthetic transformation of naturally occurring compounds, was exploited. Depending on the solvent used for the methoxylation reaction together with the presence of a 4-phenol moiety respect to the side chain, benzodihydrofurans or a benzofurans derivative can be obtained.

  DOI：

  10.1080/00397911.2015.1133828
• 作为产物：
  描述：

  对羟基苯乙醇 在 1,3-二溴-5,5-二甲基海因 作用下， 以 乙酸乙酯 为溶剂， 反应 15.0h， 以59%的产率得到2,6-dibromo-4-(2-hydroxyethyl)phenol
  参考文献：
  名称：

  拴在活性亚甲基上的环己二酮的区域选择性和立体选择性环化†

  摘要：

  研究了拴在活化亚甲基上的2,5-环己二酮的环化作用。主要基于电子效应，环己二烯酮环周围的取代用于区域选择性地引导这些环化反应。在溴化底物的情况下，这些反应会继续产生异常电子缺乏的三环环丙烷。通过使用基于金鸡纳生物碱的相转移催化剂，前手性环己二酮可以中等立体选择性地脱对称。

  DOI：

  10.1039/c1ob06125a

文献信息

• Oxidative Friedel−Crafts Reaction and its Application to the Total Syntheses of <i>Amaryllidaceae</i> Alkaloids
  作者：Kimiaka C. Guérard、Cyrille Sabot、Léanne Racicot、Sylvain Canesi

  DOI：10.1021/jo802728u

  日期：2009.3.6

  numerous natural products. As an illustration of the potential of this transformation, total syntheses of compounds belonging to the Amaryllidaceae alkaloids family such as O-methyljoubertiamine, mesembrine, and its natural derivative the dihydro-O-methylsceletenone have been achieved in eight/nine steps. The synthetic route to these molecules features a novel and efficient transformation on the basis

  使用多取代的苯酚，已经进行了涉及由高价碘试剂介导的不同芳族化合物的氧化弗里德-克来福特反应。该策略符合“芳香环化合物”的概念，这为化学合成开辟了新的机会。该反应以有用的收率进行，并且允许快速获得包含二烯酮，季碳中心和芳环的高度官能化的化合物。产品的骨架存在于多种天然产品中。作为该变换的电势的示图，属于化合物的全合成石蒜生物碱家族如ö -methyljoubertiamine，mesembrine，及其天然衍生物的二氢Ò在八/九个步骤中获得了甲基-甲基司烯酮。在Fukuyama和Michael-retro-Michael串联工艺的基础上，合成这些分子的方法具有新颖而有效的转化方式，以生产所需的含氮环系统。
• New convenient synthesis of iridol. An approach to the synthesis of ubiquinones
  作者：Paolo Bovicelli、Roberto Antonioletti、Maurizio Barontini、Giorgio Borioni、Roberta Bernini、Enrico Mincione

  DOI：10.1016/j.tetlet.2005.01.001

  日期：2005.2

  A strategy for the synthesis of ubiquinones, in which iridol is the key intermediate, has been developed, together with a new convenient synthesis of iridol (2,3-dimethoxy-5-methylphenol) starting from the easily available 4-methylphenol and using mild conditions and friendly and high-yielding reactions.

  已开发出一种以苯丙氨酸为主要中间体的泛醌合成策略，以及一种新的方便的合成方法，即从易于获得的4-甲基苯酚开始，并使用温和的方法，合成出一个新的方便的iridol（2,3-二甲氧基-5-甲基苯酚）合成方法。条件和友好而高产的反应。
• Regioselective and stereoselective cyclizations of cyclohexadienones tethered to active methylene groups
  作者：Rodolfo Tello-Aburto、Kyle A. Kalstabakken、Kelly A. Volp、Andrew M. Harned

  DOI：10.1039/c1ob06125a

  日期：——

  of 2,5-cyclohexadienones tethered to activated methylene groups was studied. The substitution around the cyclohexadienone ring serves to regioselectively direct these cyclizations based primarily on electronic effects. In the case of brominated substrates, these reactions proceed to give highly unusual electron-deficient tricyclic cyclopropanes. By using a Cinchona alkaloid-based phase-transfer catalyst

  研究了拴在活化亚甲基上的2,5-环己二酮的环化作用。主要基于电子效应，环己二烯酮环周围的取代用于区域选择性地引导这些环化反应。在溴化底物的情况下，这些反应会继续产生异常电子缺乏的三环环丙烷。通过使用基于金鸡纳生物碱的相转移催化剂，前手性环己二酮可以中等立体选择性地脱对称。
• THYROID HORMONE ANALOGS
  申请人：Haynes Nancy-Ellen

  公开号：US20090005383A1

  公开（公告）日：2009-01-01

  Provided herein are compounds of the formula (I): as well as pharmaceutically acceptable salts thereof, wherein the substituents are as those disclosed in the specification. These compounds, and the pharmaceutical compositions containing them, are useful for the treatment of diseases such as obesity, hyperlipidemia, hypercholesterolemia and diabetes and other related disorders and diseases, and may be useful for other diseases such as NASH, atherosclerosis, cardiovascular diseases, hypothyroidism, thyroid cancer and other disorders and diseases related thereto.

  本文提供了公式（I）的化合物，以及其药学上可接受的盐，其中取代基如说明书所披露的那样。这些化合物和含有它们的药物组合物对于治疗肥胖症、高脂血症、高胆固醇血症和糖尿病以及其他相关疾病和疾病非常有用，并且可能对于其他疾病，如NASH，动脉粥样硬化，心血管疾病，甲状腺功能减退症，甲状腺癌和其他相关的疾病和疾病也有用。
• Topical Delivery System for Antiaging and Skin Whitening Agents
  申请人：GUPTA SHYAM K.

  公开号：US20090074691A1

  公开（公告）日：2009-03-19

  This invention relates to certain hydroxyaryl alkanols, alkyl amines, alkyl amino acids, alkyl amino esters, and alkyl amino alkanols (“Hydroxyaryl compounds”) of formula (I). A method of topical application of said hydroxyaryl compounds is also disclosed. The treatment of certain enzyme dysfunctions that cause skin or hair condition such as darkened skin including age spots, dark circles around the eyes, and discoloration of skin from stretch marks; skin conditions related to acne including excess facial oil and facial pore size; premature hair aging including hair loss and graying; inflammation including intra-cellular and extra-cellular inflammation; skin aging including wrinkles and fine lines; loss of collagen including thinning skin and loss of skin pliability; malfunction of tyrosinase group of enzymes; and malfunction of matrix metalloprotease group of enzymes with said hydroxyaryl compounds is also disclosed:

  本发明涉及公式（I）的某些羟基芳基丙醇、烷基胺、烷基氨基酸、烷基氨基酯和烷基氨基丙醇（“羟基芳基化合物”）。还公开了一种使用上述羟基芳基化合物的局部应用方法。本发明还公开了使用上述羟基芳基化合物治疗某些酶功能障碍，这些酶功能障碍导致皮肤或头发状况的异常，例如黑化的皮肤，包括老年斑、眼周黑眼圈和妊娠纹引起的皮肤色素沉着；与痤疮相关的皮肤状况，包括过多的面部油脂和面部毛孔大小；过早的头发老化，包括脱发和白发；炎症，包括细胞内和细胞外炎症；皮肤衰老，包括皱纹和细纹；胶原蛋白流失，包括皮肤变薄和失去弹性；酪氨酸酶类酶的功能障碍；以及基质金属蛋白酶类酶的功能障碍。