摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

2-bromo-3,4,5-trimethylphenol | 87025-09-0

中文名称
——
中文别名
——
英文名称
2-bromo-3,4,5-trimethylphenol
英文别名
——
2-bromo-3,4,5-trimethylphenol化学式
CAS
87025-09-0
化学式
C9H11BrO
mdl
——
分子量
215.09
InChiKey
ZEQODERAFRLPPW-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    270.1±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):
    3.4
  • 重原子数:
    11
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    参考文献:
    名称:
    New developments in the synthesis of heterotopic atropisomeric diphosphines via diastereoselective aryl coupling reactions
    摘要:
    The new heterotopic atropisomeric diphosphine (R)-5,6-benzo-2,2'-bis(diphenylphosphino)-4',5',6'-trimethylbiphenyl has been prepared. The key step of this synthesis is a diastereoselective intramolecular aryl-aryl coupling reaction via oxidation of a suitable, chiral diarylcuprate. The catalytic properties of the diphosphine in ruthenium promoted hydrogenations of model substrates and in rhodium promoted 1,4-additions of boronic acids to alpha,beta-unsaturated ketones are fully comparable to those of reference ligands such as BINAP. This seems to indicate that C-2-symmetry is not a structural prerequisite for atropisomeric chiral diphosphines to obtain high enantio selectivities in 1,4-addition reactions as well as in hydrogenation reactions. (C) 2004 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tetasy.2004.05.014
  • 作为产物:
    描述:
    3,4,5-三甲基苯酚氢溴酸二甲基亚砜 作用下, 以 乙酸乙酯 为溶剂, 反应 0.08h, 以97%的产率得到2-bromo-3,4,5-trimethylphenol
    参考文献:
    名称:
    DMSO和卤化氢对芳烃和杂芳烃的高效实用氧化溴化和碘化:后期功能化的温和方案
    摘要:
    据报道,通过使用容易获得的二甲基亚砜(DMSO)和HX(X = Br,I)试剂,可对芳烃和杂芳烃进行廉价的溴化和碘化的高效实用系统。这种温和的氧化系统显示了用于合成芳基卤化物的通用协议。当与DMSO结合使用时,HX(X = Br,I)被用作卤化试剂,DMSO作为一种温和且廉价的氧化剂参与了本发明的化学反应。该氧化系统适合于天然产物的后期溴化。公斤级实验(> 95%的收率)显示出工业应用的巨大潜力。
    DOI:
    10.1021/acs.orglett.5b00932
点击查看最新优质反应信息

文献信息

  • キラルジホスフィン及びその金属錯体
    申请人:——
    公开号:JP2004513951A
    公开(公告)日:2004-05-13
    The present invention is directed to novel chiral diphosphines (R) or (S) and their use as optically active ligands for preparing diphosphine-metal complexes. The present invention also relates to a diphosphine-metal complex containing the chiral diphosphine (R) or (S), and to the use of the diphosphine-metal complex as a catalyst in a method for asymmetric catalysis of an unsaturated compound having a functional group. .
    本发明涉及新型手性二膦(R)或(S)及其用作光学活性配体,用于制备二膦金属配合物。本发明还涉及包含手性二膦(R)或(S)的二膦金属配合物,以及将该二膦金属配合物用作催化剂,在不饱和化合物具有功能基团的不对称催化方法中的应用。
  • Enantiopure synthesis of dihydrobenzo[1,4]-oxazine-3-carboxylic acids and a route to benzoxazinyl oxazolidinones
    作者:Rajesh Malhotra、Tushar K. Dey、Sourav Basu、Saumen Hajra
    DOI:10.1039/c4ob02475c
    日期:——

    A two step protocol is developed for the enantiopure synthesis of dihydrobenzoxazine-3-carboxylic acids via RuPhos Palladacycle-catalyzed aminoarylation of β-(2-bromoaryloxy)amino acids.

    已开发出一个两步协议,用于通过RuPhos Palladacycle催化的氨基芳基化反应合成对映纯的二氢苯并噁嗪-3-羧酸,其中底物为β-(2-溴芳氧基)氨基酸。
  • Regioselective Aromatic Perfluoro-<i>tert</i>-butylation Using Perfluoro-<i>tert</i>-butyl Phenyl Sulfone and Arynes
    作者:Zhiqiang Wei、Lixian Wen、Kaidi Zhu、Qian Wang、Yanchuan Zhao、Jinbo Hu
    DOI:10.1021/jacs.2c10479
    日期:2022.12.7
    synthetic protocol to realize aromatic perfluoro-tert-butylation. The key to the success is the identification of PFtB phenyl sulfone as a new source of PFtB anion, which reacts with arynes in a highly regioselective manner to afford perfluoro-tert-butylated arenes in high yields. The application of the method is demonstrated by the preparation of sensitive 19F-labeled NMR probes with an extraordinary resolving
    长期以来,人们一直在寻求将全氟叔丁基(PFtB,CF 3基团的较大类似物)选择性引入芳烃中,但仍然是一项艰巨的任务。我们在此报告了第一个实现芳香族全氟叔丁基化的通用合成方案。成功的关键是将 PFtB 苯基砜鉴定为 PFtB 阴离子的新来源,它以高度区域选择性的方式与芳烃反应,以高产率提供全氟叔丁基芳烃。该方法的应用通过制备具有非凡分辨能力的灵敏的19 F-标记的NMR探针来证明。
  • 10.1021/jacs.4c04608
    作者:Kim, Raphael S.、Kgoadi, Lebogang O.、Hayes, Jacob C.、Rainboth, Derek P.、Mudd, Catherine M.、Yap, Glenn P. A.、Watson, Donald A.
    DOI:10.1021/jacs.4c04608
    日期:——
    We report a highly cross- and atroposelective coupling between ortho-(chloro)arylphosphine oxides and ortho-(bromo)aryl ethers. This previously unknown asymmetric nickel-catalyzed reaction offers a direct route to highly enantioenriched axially chiral biaryl monophosphine oxides that are difficult to access by other means. These products can be readily reduced to generate chiral MOP-type ligands bearing
    我们报道了邻(氯)芳基氧化膦和邻(溴)芳基醚之间的高度交叉和间质选择性偶联。这种以前未知的不对称镍催化反应为高度对映体富集的轴向手性联芳基单膦氧化物提供了直接途径,而这是通过其他方法难以获得的。这些产物可以很容易地还原生成带有复杂骨架的手性 MOP 型配体。还证明了这些手性配体在不对称催化中的效用。
  • Fischer, Alfred; Henderson, George Narayanan, Canadian Journal of Chemistry, 1983, vol. 61, p. 1045 - 1052
    作者:Fischer, Alfred、Henderson, George Narayanan
    DOI:——
    日期:——
查看更多