2-benzyl-5-methoxybenzofuran | 1248340-79-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 2-benzyl-5-methoxybenzofuran
• 英文别名: 2-benzyl-5-methoxy-1-benzofuran
• CAS: 1248340-79-5
• 化学式: C₁₆H₁₄O₂
• 分子量: 238.286
• InChiKey: FHEISDKRPDLJGT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  22.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-benzyl-5-methoxybenzofuran 在 三溴化硼 作用下， 以 乙醇 、 二氯甲烷 、 水 为溶剂， 反应 16.0h， 生成 2-benzyl-4-(((2-hydroxyethyl)(methyl)amino)methyl)benzofuran-5-ol
  参考文献：
  名称：

  Benzofuran derivatives as a novel class of inhibitors of mTOR signaling

  摘要：

  High-throughput screening (HTS) hit 1 was previously identified as an inhibitor of the Akt/mTOR (Akt/mammalian target of rapamycin) signaling, which is a major target in oncology. The cytotoxicity of 1 was determined on a panel of human cancer cells lines with an IC50 comprised between 30 and 140 mu M. Subsequent structure activity relationship (SAR) studies led us to the identification of compounds that displayed an enhanced cytotoxicity. We demonstrated also that these molecules directly bind to mTOR complex 1 (mTORC1) and inhibit its kinase activity. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.12.020
• 作为产物：
  描述：

  2-(1-hydroxy-3-phenylprop-2-yn-1-yl)-4-methoxyphenol 在 异氰酸叔丁酯 、 palladium diacetate 、 caesium carbonate 作用下， 以 乙腈 为溶剂， 反应 4.0h， 以90%的产率得到2-benzyl-5-methoxybenzofuran
  参考文献：
  名称：

  Pd-Catalyzed Isocyanide Assisted Reductive Cyclization of 1-(2-Hydroxyphenyl)-propargyl Alcohols for 2-Alkyl/Benzyl Benzofurans and Their Useful Oxidative Derivatization

  摘要：

  An unusual Pd-catalyzed isocyanide assisted 5exo-dig reductive cyclization of 1-(2-hydroxyphenyl)-propargyl alcohols is achieved for 2-alkyl/benzyl benzofurans. The reaction features a high substrate scope, insensitivity to air, and excellent product yielding. Further, a direct metal-free C-H functionalization (azidation, alkoxylation, and hydroxylation) and selective oxidative cleavage of thus synthesized 2-benzylfurans are described for azido-, alkoxy-, hydroxyl-, amide-, and tetrazolyl adducts.

  DOI：

  10.1021/acs.joc.5b02204

文献信息

• Synthesis of Functionalized Benzo[<i>b</i>]furans via Oxidative Cyclization of <i>o</i>-Cinnamyl Phenols
  作者：Mohammad Rehan、Rajender Nallagonda、Braja Gopal Das、Tannu Meena、Prasanta Ghorai

  DOI：10.1021/acs.joc.6b02752

  日期：2017.4.7

  Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization

  本文所公开的是用于官能化的2-苄基苯并[合成的有效合成路线b ]呋喃经由区域选择性5 -外-TRIG分子内的氧化环化邻-使用肉桂酚[的PdCl 2（CH 3 CN）2 ]作为催化剂和苯醌作为氧化剂。此外，使用由Re 2 O 7催化的肉桂醇对苯酚进行邻位邻肉桂酸化，然后使用上述Pd催化剂进行氧化环化。反应显示出广泛的底物范围，具有良好至优异的产率。
• Palladium-catalyzed intermolecular coupling of 2-haloallylic acetates with simple phenols, and sequential formation of benzofuran derivatives through the intramolecular cyclization
  作者：Takumi Udagawa、Yukiko Tsuchi、Ikuma Takehara、Masaki Kogawa、Hirotaka Watanabe、Mitsuaki Yamamoto、Hiroaki Tsuji、Motoi Kawatsura

  DOI：10.1016/j.tet.2017.10.001

  日期：2017.11

  synthesis of 2-substituted benzofuran derivatives by the palladium-catalyzed reaction of 2-haloallylic acetates with simple phenols in the presence of a base. The reaction proceeded through the intermolecular attack of the nucleophile on the central carbon atom of the π-allyl group, carbon-halogen bond cleavage, and sequential intramolecular cyclization.

  我们在碱的存在下，通过2-卤代烯丙基乙酸盐与简单酚的钯催化反应，完成了2-取代的苯并呋喃衍生物的合成。该反应通过亲核体对π-烯丙基的中心碳原子的分子间攻击，碳-卤素键的裂解以及依次的分子内环化而进行。
• Oxidative Kinetic Resolution of Cyclic Benzylic Ethers
  作者：Shutao Sun、Yingang Ma、Ziqiang Liu、Lei Liu

  DOI：10.1002/anie.202009594

  日期：2021.1.4

  manganese‐catalyzed oxidative kinetic resolution of cyclic benzylic ethers through asymmetric C(sp3)−H oxidation is reported. The practical approach is applicable to a wide range of 1,3‐dihydroisobenzofurans bearing diverse functional groups and substituent patterns at the α position with extremely efficient enantiodiscrimination. The generality of the strategy was further demonstrated by efficient oxidative kinetic

  据报道，锰通过不对称的C（sp 3）-H氧化反应催化了环苄醚的氧化动力学拆分。实际的方法适用于范围广泛的1,3-二氢异苯并呋喃，其在α位置带有多种官能团和取代基，并具有非常有效的对映歧化作用。该策略的普遍性通过另一种五元环状苄基醚，2,3-二氢苯并呋喃和六元6H-苯并[c]苯二酚的有效氧化动力学拆分得到了进一步证明。进一步探索了否则难以获得的生物活性分子的直接后期氧化动力学拆分。
• Synthesis of 2-substituted benzofuran derivatives by the palladium-catalyzed intermolecular coupling of 2-fluoroallylic acetates with phenols
  作者：Takumi Udagawa、Masaki Kogawa、Yukiko Tsuchi、Hirotaka Watanabe、Mitsuaki Yamamoto、Motoi Kawatsura

  DOI：10.1016/j.tetlet.2016.12.011

  日期：2017.1

  We investigated the intermolecular coupling reaction of 2-fluoroallylic acetates with simple phenols by the [Pd(C3H5)Cl]2, DPPF, and KHMDS at 100 °C for 16 h, and succeeded in obtaining 2-substituted benzofuran derivatives in good to high yield through the C–F bond activation and intermolecular cyclization.

  我们研究了[Pd（C 3 H 5）Cl] 2，DPPF和KHMDS在100°C下16 h的2-氟烯丙基乙酸酯与简单酚的分子间偶联反应，并成功获得了2-取代的苯并呋喃衍生物。通过CF键活化和分子间环化，具有良好至高产的效果。
• Palladium-catalyzed intermolecular coupling of 3-substituted propargylic carbonates with phenols: Synthesis of 2-substituted benzofuran derivatives
  作者：Hirotaka Watanabe、Masataka Okubo、Kouichi Watanabe、Takumi Udagawa、Motoi Kawatsura

  DOI：10.1016/j.tetlet.2017.06.023

  日期：2017.7

  accomplished the synthesis of 2-substituted benzofuran derivatives by the palladium-catalyzed reaction of 3-substituted propargylic carbonates with phenols. The 2-substituted benzofuran derivatives were obtained through the intermolecular coupling of the 3-substituted propargylic carbonates with phenols, and sequential intramolecular cyclization reaction.

  我们通过3-取代的炔丙基碳酸酯与酚的钯催化反应完成了2-取代的苯并呋喃衍生物的合成。通过3-取代的炔丙基碳酸酯与苯酚的分子间偶联和随后的分子内环化反应获得2-取代的苯并呋喃衍生物。