4-bromo-2,3,5-trimethylphenol | 156483-07-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 4-bromo-2,3,5-trimethylphenol
• CAS: 156483-07-7
• 化学式: C₉H₁₁BrO
• mdl: MFCD00983799
• 分子量: 215.09
• InChiKey: KHQCLZZWQARYJF-UHFFFAOYSA-N

物化性质

• 沸点：
  283.8±35.0 °C(Predicted)
• 密度：
  1.406±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

安全信息

• 包装等级：
  III
• 危险类别：
  8
• 危险性防范说明：
  P261,P264,P270,P271,P280,P302+P352,P304+P340,P305+P351+P338,P310,P330,P332+P313,P362,P403+P233,P405,P501
• 危险品运输编号：
  3261
• 危险性描述：
  H302,H315,H318,H335
• 储存条件：
  2-8°C，干燥

反应信息

• 作为反应物：
  描述：

  4-bromo-2,3,5-trimethylphenol 在 正丁基锂 、 4-甲基苯磺酸吡啶 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 7.25h， 生成 [6-Chloro-5-(methoxymethoxy)pyridin-2-yl]-[4-(1-ethoxyethoxy)-2,3,6-trimethylphenyl]methanol
  参考文献：
  名称：

  NOVEL THYROID HORMONE BETA RECEPTOR AGONIST

  摘要：

  公开号：

  EP2423194B1
• 作为产物：
  描述：

  2,3,5-三甲基苯酚 在 1-butyl-3-methylimidazolium tribromide 作用下， 以86%的产率得到4-bromo-2,3,5-trimethylphenol
  参考文献：
  名称：

  将3,3'-二羟基异戊二烯裁制为羟基二苯乙烯：发现具有增加的抗增殖活性和细胞选择性的白藜芦醇类似物

  摘要：

  根据异戊二烯单元截留策略，“量身定制” 3,3'-二羟基异戊二烯（天然类胡萝卜素），设计了四种新型化合物。其中，最小的分子1（2,3,6,2'，3'，6'-六甲基-4,4'-二羟基-反式-二苯乙烯）精确合成为一锅Stille-Heck串联序列，并通过阻断NCI-H460细胞在G1期的周期介导的选择性抗增殖活性而成为有前途的先导分子。此外，理论计算和细胞摄取实验表明，化合物1具有独特的多甲基化模式显着诱导构象变化脱离平面，并增加其细胞摄取和代谢稳定性。观察结果应有助于合理设计白藜芦醇类抗增殖药。

  DOI：

  10.1002/chem.201403024

文献信息

• Aromatic substitution in ball mills: formation of aryl chlorides and bromides using potassium peroxomonosulfate and NaX
  作者：Robert Schmidt、Achim Stolle、Bernd Ondruschka

  DOI：10.1039/c2gc16508b

  日期：——

  Aryl chlorides and bromides are formed from arenes in a ball mill using KHSO5 and NaX (X = Cl, Br) as oxidant and halogen source, respectively. Investigation of the reaction parameters identified operating frequency, milling time, and the number of milling balls as the main influencing variables, as these determine the amount of energy provided to the reaction system. Assessment of liquid-assisted grinding conditions revealed, that the addition of solvents has no advantageous effect in this special case. Preferably activated arenes are halogenated, whereby bromination afforded higher product yields than chlorination. Most often reactions are regio- and chemoselective, since p-substitution was preferred and concurring side-chain oxidation of alkylated arenes by KHSO5 was not observed.

  芳基氯和芳基溴是通过在球磨机中使用KHSO5和NaX（X=Cl，Br）分别作为氧化剂和卤素源，从芳烃形成的。对反应参数的调查确定操作频率、研磨时间和研磨球数为主要影响变量，因为这些变量决定了向反应系统提供的能量。对液体辅助研磨条件的评估揭示，在这种特殊情况下，溶剂的添加没有优势效应。优先激活的芳烃被卤化，其中溴化得到的产物收率高于氯化。大多数反应具有区域选择性和化学选择性，因为更喜欢对位取代，而且没有观察到KHSO5对烷基化芳烃侧链的氧化作用。
• Benzofuran derivatives
  申请人：Tsukamoto Tetsuya

  公开号：US20100234357A1

  公开（公告）日：2010-09-16

  The present invention provides a compound represented by the following formula (I): wherein: Ring A represents an optionally substituted piperazine ring, an optionally substituted morpholine ring, or an optionally substituted homopiperazine ring; R 1 and R 2 are the same or different from each other, and represent a hydrogen atom or optionally substituted lower alkyl; R 3 and R 4 are the same or different from each other, and represent a hydrogen atom or halogenated or non-halogenated lower alkyl; R 5 to R 7 are the same or different from each other, and represent a hydrogen atom, hydroxy, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted lower alkoxy, optionally substituted cycloalkyl, optionally substituted aryl, an optionally substituted aromatic heterocyclic ring, optionally substituted amino, or acyl; and represents a single bond or double bond, or a salt thereof.

  本发明提供了一种由以下式（I）表示的化合物： 其中： 环A代表可选择地取代的哌嗪环、可选择地取代的吗啉环或可选择地取代的同环丙二胺环； R1和R2彼此相同或不同，代表氢原子或可选择地取代的较低烷基； R3和R4彼此相同或不同，代表氢原子或卤代或非卤代的较低烷基； R5到R7彼此相同或不同，代表氢原子、羟基、可选择地取代的较低烷基、可选择地取代的较低烯基、可选择地取代的较低烷氧基、可选择地取代的环烷基、可选择地取代的芳基、可选择地取代的芳香杂环、可选择地取代的氨基或酰基；和 代表单键或双键，或其盐。
• Novel Phosphinic Acid-Containing Thyromimetics
  申请人：Erion Mark D.

  公开号：US20090028925A1

  公开（公告）日：2009-01-29

  The present invention relates to compounds of phosphonic acid-containing T3 mimetics and monoesters thereof, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndrome x and diabetes.

  本发明涉及含有磷酸基T3拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟拟
• MODULATORS OF THR-BETA AND METHODS OF USE THEREOF
  申请人：ALIGOS THERAPEUTICS, INC.

  公开号：US20220009924A1

  公开（公告）日：2022-01-13

  Disclosed herein are compounds of Formula I′: or a stereoisomer or a tautomer thereof, or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising such compounds, and methods of treating disease by administering or contacting a patient with one or more of the above compounds.

  本文揭示了以下式I′的化合物：或其立体异构体或互变异构体，或其药学上可接受的盐，包括这些化合物的药物组合物，以及通过向患者施用或接触上述化合物之一或多个来治疗疾病的方法。
• Direct and enantiospecific ortho-benzylation of phenols by the Mitsunobu reaction
  作者：Shoji Fukumoto、Shigeha Fukushi、Shinji Terao、Mitsuru Shiraishi

  DOI：10.1039/p19960001021

  日期：——

  ortho-Substituted phenol derivatives with high optical purity have been obtained directly by Mitsunobu reaction between an appropriate phenol and an optically active benzyl alcohol. In this reaction, the chemical yield was well balanced with the optical purity of the ortho-substituted compound when 5 equiv. of phenol was allowed to react with 1 equiv. of alcohol in a solvent such as dichloroethane or toluene. In addition, it was confirmed by an X-ray analysis of the product that stereochemical inversion of the asymmetric centre took place in this reaction, as well as the usual Mitsunobu reaction. This reaction is useful in the preparation of optically active phenol derivatives possessing a diarylmethane moiety.

  通过米津信反应，直接从适当的酚和光学活性的苄醇中获得了具有高光学纯度的邻位取代酚衍生物。在这一反应中，当用5当量的酚与1当量的醇在二氯乙烷或甲苯等溶剂中反应时，化学产率与邻位取代化合物的光学纯度之间保持了良好的平衡。此外，通过产品的X射线分析确认，在这一反应中，不对称中心发生了立体化学反转，这与常规的米津信反应一致。该反应在制备具有二芳基甲烷结构的光学活性酚衍生物方面非常有用。