1-benzyl-2,4-dimethoxybenzene | 32565-33-6

• 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: 1-benzyl-2,4-dimethoxybenzene
• 英文别名: 4-Benzyl-1,3-dimethoxybenzol
• CAS: 32565-33-6
• 化学式: C₁₅H₁₆O₂
• 分子量: 228.291
• InChiKey: IEOVVEVOQIDCBK-UHFFFAOYSA-N

物化性质

• 熔点：
  98 °C
• 沸点：
  188-190 °C(Press: 13 Torr)
• 密度：
  1.052±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-benzyl-2,4-dimethoxybenzene 在 三溴化硼 、 水 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 以95%的产率得到4-苯甲基-1,3-苯二酚
  参考文献：
  名称：

  Structure-based design, synthesis and preliminary anti-inflammatory activity of bolinaquinone analogues

  摘要：

  As a part of our drug discovery efforts we developed a series of simplified derivatives of bolinaquinone (BLQ), a hydroxyquinone marine metabolite, showing potent anti-inflammatory activity. Thirteen new hydroxyquinone derivatives closely related to BLQ were synthesized and tested on mouse macrophagelike RAW 264.7 cell line in order to investigate their ability to modulate the production of Prostaglandin E-2 (PGE(2)). This optimization process led to the identification of three strictly correlated compounds with comparable and higher inhibitory potency than BLQ on PGE2 production. To evaluate the affinity of BLQ and its analogues for h5PLA(2), surface plasmon resonance (SPR) experiments were performed. (C) 2010 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2010.11.028
• 作为产物：
  描述：

  间苯二酚 在 sodium hydroxide 、 锌 、 苯 作用下， 生成 1-benzyl-2,4-dimethoxybenzene
  参考文献：
  名称：

  Skraup; Boehm, Chemische Berichte, 1926, vol. 59, p. 1014

  摘要：

  DOI：

文献信息

• Heteroaryl-substituted pyrrole derivatives, their preparation and their therapeutic uses
  申请人：SANKYO COMPANY, LIMITED

  公开号：US20040054173A1

  公开（公告）日：2004-03-18

  Compounds having activity against production of an inflammatory cytokine of formula (I)′: 1 A′ is pyrrole; R 1′ is phenyl or naphthyl; R 2′ is pyridyl or pyrimidinyl; R 3′ is (IIa)′, (IIb)′ or (IIc)′: 2 m′ is 1; E′ is nitrogen; D′ is >C(R 5′ )—, R 5′ is hydrogen, Substituent &agr;′ or Substituent &bgr;′; B′ is nitrogen-containing 5-membered heterocyclic; R 4′ is 1 to 3 substituents from Substituent &agr;′, Substituent &bgr;′ and Substituent &ggr;′; R 1′ and R 3′ are bonded to two atoms of the pyrrole adjacent to the pyrrole atom bonded to R 2′ ; Substituent &agr;′ is hydroxyl, nitro, cyano, halogen, alkoxy, halogeno alkoxy, alkylthio, halogeno alkylthio or —NR a′ R b′ ; R a′ and R b′ are hydrogen, alkyl, alkenyl, alkynyl, aralkyl or alkylsulfonyl, or R a′ and R b′ with the nitrogen atom form a heterocyclyl; Substituent &bgr;′ is alkyl, alkenyl, alkynyl, aralkyl or cycloalkyl; Substituent &ggr;′ is oxo, hydroxyimino, alkoxyimino, alkylene, alkylenedioxy, alkylsulfinyl, alkylsulfonyl, aryl, aryloxy, alkylidenyl or aralkylidenyl.

  具有对抗公式(I)′炎症细胞因子生成活性的化合物： 1 A′是吡咯；R 1′ 是苯基或萘基；R 2′ 是吡啶基或嘧啶基；R 3′ 是(IIa)′，(IIb)′或(IIc)′： 2 m′是1；E′是氮；D′是>C(R 5′ )—, R 5′ 是氢，取代基α′或取代基β′；B′是含氮的5-成员杂环；R 4′ 是来自取代基α′，取代基β′和取代基γ′的1至3个取代基；R 1′ 和R 3′ 分别与吡咯环上与R 2′ 相连的吡咯原子的两个相邻原子成键；取代基α′是羟基，硝基，氰基，卤素，烷氧基，卤代烷氧基，烷基亚砜，卤代烷基亚砜或—NR a′ R b′ ；R a′ 和R b′ 是氢，烷基，烯基，炔基，芳烷基或烷基亚磺酰基，或者R a′ 和R b′ 与氮原子形成杂环；取代基β′是烷基，烯基，炔基，芳烷基或环烷基；取代基γ′是氧代，羟基亚胺，烷氧基亚胺，亚烷基，亚烷基二氧，烷基亚磺酰基，烷基亚磺酰基，芳基，芳氧基，亚烷基或芳亚烷基。
• Supercritical Carbon Dioxide: A Promoter of Carbon-Halogen Bond Heterolysis
  作者：Thais Delgado-Abad、Jaime Martínez-Ferrer、Ana Caballero、Andrea Olmos、Rossella Mello、María Elena González-Núñez、Pedro J. Pérez、Gregorio Asensio

  DOI：10.1002/anie.201303819

  日期：2013.12.9

  Amazing reaction medium: Supercritical carbon dioxide, with zero dipole moment, lower dielectric constant than pentane, and non‐hydrogen‐bonding behavior, ionizes carbon–halogen bonds, dissociates the resulting ion pairs, and escapes from capture by the carbocation intermediates at temperatures above 40 °C. These properties allow the observation of carbocation chemistry in the absence of acids.

  惊人的反应介质：超临界二氧化碳，偶极矩为零，比戊烷低的介电常数，并且无氢键行为，使碳-卤素键电离，离解所得的离子对，并在高于温度的条件下逃脱了被碳正离子中间体捕获40℃。这些特性使得可以在不存在酸的情况下观察碳正离子化学反应。
• Green, Mild, and Efficient Friedel–Crafts Benzylation of Scarcely Reactive Arenes and Heteroarenes under On‐Water Conditions
  作者：Pellegrino La Manna、Annunziata Soriente、Margherita De Rosa、Antonio Buonerba、Carmen Talotta、Carmine Gaeta、Placido Neri

  DOI：10.1002/cssc.201900137

  日期：2019.4.23

  The catalytic strategy exploits the hydrophobicity of the resorcinarene macrocycle 1 a. The proposed mechanism is based on the activation of benzyl chloride by H‐bonding interactions with catalyst 1 a. In fact, under on‐water conditions the hydrophobic amplification of the strength of the H‐bonding interactions between the OH groups of the resorcinarene catalyst and the chlorine atom of benzyl chloride

  几乎没有反应性的芳烃和杂芳烃的无金属弗里德尔-克拉夫特苄基化反应（FCB）是在水上条件下通过环境可持续的方法进行的。催化策略利用间苯二烯大环1a的疏水性。所提出的机理是基于通过与催化剂1a的H键相互作用来活化苄基氯。实际上，在水上条件下，间苯二甲烯催化剂的OH基团与苄基氯的氯原子之间的H键相互作用强度的疏水性放大导致C-Cl键极化，从而促进了亲电子攻击π亲核试剂。因此，通过使用间苯二甲烯1a作为催化剂，在温和的水条件下，许多芳烃和杂芳烃都被有效地苄基化。苯的FCB在工业上与二苯甲烷的合成有关，因此在间苯二甲烯催化剂1a的存在下，从苯和苄基氯开始，水上程序扩展到克级的二苯甲烷的合成。
• S_N1 reactions in supercritical carbon dioxide in the presence of alcohols: the role of preferential solvation
  作者：Thais Delgado-Abad、Jaime Martínez-Ferrer、Rafael Acerete、Gregorio Asensio、Rossella Mello、María Elena González-Núñez

  DOI：10.1039/c6ob01097k

  日期：——

  Ethanol (3b) inhibits SN1 reactions of alkyl halides 1 in supercritical carbon dioxide (scCO2) and gives no ethers as products. The unexpected behaviour of alcohols 3 in the reaction of alkyl halides 1 with 1,3-dimethoxybenzene (2) in scCO2 under different conditions is rationalised in terms of Brønsted and Lewis acid–base equilibria of reagents, intermediates, additives and products in a singular

  乙醇（3b）抑制烷基卤化物1在超临界二氧化碳（sc CO 2）中的S N 1反应，并且不产生醚类产物。酒精3在卤代烃1与1,3-二甲氧基苯（2）在sc CO 2中的不同条件下反应的意外行为，通过Brønsted和Lewis酸碱平衡试剂，中间体，添加剂和产物的合理化得到了合理化。一种具有以下特征的奇异溶剂：（i）二氧化碳的强四极杆和路易斯酸特性，阻碍了S N通过强力溶解基本溶质的2条路径; （ii）二氧化碳的弱路易斯碱特性，阻止其表现为质子吸收体；（iii）sc CO 2的可压缩性质，其在溶剂需求速率确定步骤中增强了优先溶剂化对二氧化碳可利用性的影响。
• Graphene-Catalyzed Direct Friedel–Crafts Alkylation Reactions: Mechanism, Selectivity, and Synthetic Utility
  作者：Feng Hu、Mehulkumar Patel、Feixiang Luo、Carol Flach、Richard Mendelsohn、Eric Garfunkel、Huixin He、Michal Szostak

  DOI：10.1021/jacs.5b09636

  日期：2015.11.18

  Transition-metal-catalyzed alkylation reactions of arenes have become a central transformation in organic synthesis. Herein, we report the first general strategy for alkylation of arenes with styrenes and alcohols catalyzed by carbon-based materials, exploiting the unique property of graphenes to produce valuable diarylalkane products in high yields and excellent regioselectivity. The protocol is characterized

  芳烃的过渡金属催化烷基化反应已成为有机合成的核心转化。在此，我们报告了第一个由碳基材料催化的芳烃与苯乙烯和醇类烷基化的一般策略，利用石墨烯的独特性质以高产率和优异的区域选择性生产有价值的二芳基烷烃产品。该协议的特点是广泛的底物范围和出色的官能团耐受性。值得注意的是，该过程构成了石墨烯的第一个普遍应用，以利用锚定在 GO 表面上的极性官能团促进直接 CC 键的形成，从而为使用良性且易于获得的石墨烯材料进行一系列官能团烷基化打开了大门。