苯,2,4-二碘-1,3,5-三甲氧基- | 117934-81-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 苯,2,4-二碘-1,3,5-三甲氧基-
• 英文名称: 2,4-diiodo-1,3,5-trimethoxybenzene
• 英文别名: 2,4,6-trimethoxy-1,3-diiodobenzene
• CAS: 117934-81-3
• 化学式: C₉H₁₀I₂O₃
• 分子量: 419.986
• InChiKey: GPBALMQLIJAZEK-UHFFFAOYSA-N

物化性质

• 熔点：
  133 °C
• 沸点：
  414.4±45.0 °C(Predicted)
• 密度：
  2.042±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  苯,2,4-二碘-1,3,5-三甲氧基- 在 sodium tetrahydroborate 、 disodium telluride 、 溶剂黄146 作用下， 以 乙醇 为溶剂， 反应 4.0h， 以89%的产率得到1,3,5-三甲氧基苯
  参考文献：
  名称：

  Iodothyronine Deiodinase Mimics. Deiodination of o,o‘-Diiodophenols by Selenium and Tellurium Reagents

  摘要：

  To better understand, and in the extension mimic, the action of the three selenium-containing iodothyronine deiodinases, o,o'-diiodophenols were reacted under acidic conditions with sodium hydrogen telluride, benzenetellurol, sodium hydrogen selenide, or benzeneselenol and under basic conditions with the corresponding deprotonated reagents. Sodium hydrogen telluride was found to selectively remove one iodine from a variety of 4-substituted o,o'-diiodophenols, including a protected form of thyroxine (T-4) Thus, it mimics the D1 variety of the iodothyronine deiodinases. Sodium telluride was a more reactive deiodinating agent toward o,o'-diiodophenols, often causing removal of both halogens. Benzenetellurol and sodium benzenetellurolate sometimes showed useful selectivity for monodeiodination. However, the products were often contaminated by small amounts of organotellurium compounds. Sodium hydrogen selenide, sodium selenide, benzeneselenol, and sodium benzeneselenolate were essentially unreactive toward o,o'-diiodophenols. To gain more insight into thyroxine inner-ring deiodination, substituted 2,6-diiodophenyl methyl ethers were treated with some of the chalcogen reagents. Reactivity and selectivity for monodeiodination varied considerably depending on the substituents attached to the aromatic nucleus. In general, it was possible to find reagents that could bring about the selective mono- or dideiodination of these substrates.

  DOI：

  10.1021/jo972240b
• 作为产物：
  描述：

  1,3,5-三甲氧基苯 在 N,N,N-trimethylbenzenemethanaminium dichloroiodate 、 zinc(II) chloride 作用下， 以 溶剂黄146 为溶剂， 反应 0.17h， 以97%的产率得到苯,2,4-二碘-1,3,5-三甲氧基-
  参考文献：
  名称：

  用苄基三甲基二氯碘酸铵和氯化锌碘化芳醚

  摘要：

  在氯化锌存在下，在室温下，芳香醚与二氯碘酸苄基铵 (1-) 在乙酸中反应，得到碘取代的芳香醚，收率良好。

  DOI：

  10.1246/cl.1988.795

文献信息

• Iodination of Alkyl Aryl Ethers by Mercury(II) Oxide-Iodine Reagent in Dichloromethane
  作者：Kazuhiko Orito、Takahiro Hatakeyama、Mitsuhiro Takeo、Hiroshi Suginome

  DOI：10.1055/s-1995-4089

  日期：1995.10

  A convenient method for selective mono- and diiodination of alkyl aryl ethers by mercury(II) oxide-iodine reagent in dichloromethane is reported.

  报道了一种在二氯甲烷中利用氧化汞(II)碘试剂选择性实现烷基芳基醚单碘化和二碘化的简便方法。
• Iodination of Aromatic Ethers by Use of Benzyltrimethylammonium Dichloroiodate and Zinc Chloride
  作者：Shoji Kajigaeshi、Takaaki Kakinami、Masayuki Moriwaki、Masakazu Watanabe、Shizuo Fujisaki、Tsuyoshi Okamoto

  DOI：10.1246/cl.1988.795

  日期：1988.5.5

  The reaction of aromatic ethers with benzyltrimethylammonium dichloroiodate(1-) in acetic acid in the presence of zinc chloride at room temperature gave iodo-substituted aromatic ethers in good yields.

  在氯化锌存在下，在室温下，芳香醚与二氯碘酸苄基铵 (1-) 在乙酸中反应，得到碘取代的芳香醚，收率良好。
• Efficient and Practical Oxidative Bromination and Iodination of Arenes and Heteroarenes with DMSO and Hydrogen Halide: A Mild Protocol for Late-Stage Functionalization
  作者：Song Song、Xiang Sun、Xinwei Li、Yizhi Yuan、Ning Jiao

  DOI：10.1021/acs.orglett.5b00932

  日期：2015.6.19

  efficient and practical system for inexpensive bromination and iodination of arenes as well as heteroarenes by using readily available dimethyl sulfoxide (DMSO) and HX (X = Br, I) reagents is reported. This mild oxidative system demonstrates a versatile protocol for the synthesis of aryl halides. HX (X = Br, I) are employed as halogenating reagents when combined with DMSO which participates in the present

  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。
• An in situ acidic carbon dioxide/glycol system for aerobic oxidative iodination of electron-rich aromatics catalyzed by Fe(NO₃)₃·9H₂O
  作者：Ran Ma、Cheng-Bin Huang、An-Hua Liu、Xue-Dong Li、Liang-Nian He

  DOI：10.1039/c4cy00721b

  日期：——

  An environmentally benign CO2/glycol reversible acidic system was developed for the iron(III)-catalyzed aerobic oxidative iodination of electron-rich aromatics without the need for any conventional acid additive or organic solvent. Notably, moderate to high isolated yields (up to 97%) of the aryl iodides were attained with comparable regioselectivity when ferric nitrate nonahydrate was used as the catalyst with molecular iodine under 1 MPa of CO2.

  开发了一种环境友好的 CO2/乙二醇可逆酸性系统，用于在富电子芳香化合物上进行铁(III)催化的空气氧化碘化反应，无需任何常规酸添加剂或有机溶剂。值得注意的是，当使用无水硝酸铁作为催化剂，分子碘在 1 MPa 的 CO2 下进行反应时，获得了中等至高分离产率的碘代芳烃（高达 97%），并且具有相当的区域选择性。
• Transition metal-free protodecarboxylation of electron rich aromatic acids under mild conditions
  作者：Jingxian Fang、Dangui Wang、Guo-Jun Deng、Hang Gong

  DOI：10.1016/j.tetlet.2017.10.036

  日期：2017.11

  A mild and practical method for the transition metal-free protodecarboxylation of aromatic acids using readily available and safe sodium persulfate as initiator was described. This environment-friendly decarboxylation approach was performed at 60 °C in ethanol and could easily scale up to the gram level with a good yield. In Particular, the tandem reactions of decarboxylation and halogenation were

  描述了一种温和而实用的方法，该方法使用易于获得且安全的过硫酸钠作为引发剂来进行芳族酸的无过渡金属的原脱羧。这种环境友好的脱羧方法是在60°C的乙醇中进行的，可以轻松按比例放大至克级，收率也很高。特别地，通过向反应体系中添加相应的卤化试剂来实现脱羧和卤化的串联反应。