6-chloro-3-methylbenzofuran | 30343-35-2

• 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: 6-chloro-3-methylbenzofuran
• 英文别名: 6-Chloro-3-methyl-1-benzofuran
• CAS: 30343-35-2
• 化学式: C₉H₇ClO
• 分子量: 166.607
• InChiKey: HYJFWCVQJOZCDT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  6-chloro-3-methylbenzofuran 在 盐酸 、 正丁基锂 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 正己烷 为溶剂， 生成 6-(6-chloro-3-methyl-benzofuran-2-sulfonyl)-2H-pyridazin-3-one
  参考文献：
  名称：

  A Novel Series of Non-Carboxylic Acid, Non-Hydantoin Inhibitors of Aldose Reductase with Potent Oral Activity in Diabetic Rat Models:  6-(5-Chloro-3-methylbenzofuran-2-sulfonyl)-2H-pyridazin-3-one and Congeners

  摘要：

  Discovery of a highly selective, potent, and safe non-carboxylic acid, non-hydantoin inhibitor of aldose reductase (AR) capable of potently blocking the excess glucose flux through the polyol pathway that prevails under diabetic conditions has been a long-standing challenge. In response, we did high-throughput screening of our internal libraries of compounds and identified 6-phenylsulfonylpyridazin-2H-3-one, 8, which showed modest inhibition of AR, both in vitro and in vivo. Initial structure-activity relationships concentrated on phenyl substituents and led to 6-(2,4-dichlorophenylsulfonyl)-2H-pyridazin-3-one, 81, which was more potent than 8, both in vitro and in vivo. Incorporation of extant literature findings with other aldose reductase inhibitors, including zopolrestat, resulted in the title inhibitor, 19m, which is one of the most potent and highly selective non-carboxylic acid, non-hydantoin inhibitors of AR yet described (IC50, 1 nM; ED90 vs sciatic nerve sorbitol and fructose, respectively, 0.8 and 4.0 mg/kg). In rats, its oral bioavailability is 98% and it has a favorable plasma t(1/2) (26 +/- 3 h).

  DOI：

  10.1021/jm050462t
• 作为产物：
  描述：

  间氯苯乙酸乙酯 在 三氟化硼 、 sodium acetate 、 乙酸酐 、 potassium carbonate 、 溶剂黄146 作用下， 以 丙酮 为溶剂， 反应 26.5h， 生成 6-chloro-3-methylbenzofuran
  参考文献：
  名称：

  WO2020069625A5

  摘要：

  公开号：

  WO2020069625A5

文献信息

• [EN] 2,3-DIHYDRO-6-NITROIMIDAZO (2,1-B) OXAZOLE COMPOUNDS FOR THE TREATMENT OF TUBERCULOSIS<br/>[FR] COMPOSES 2,3-DIHYDRO-6-NITROIMIDAZO (2,1-B) OXAZOLE POUR LE TRAITEMENT DE LA TUBERCULOSE
  申请人：OTSUKA PHARMA CO LTD

  公开号：WO2005042542A1

  公开（公告）日：2005-05-12

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: (1)in the above formula (1), R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R1 and -(CH2)nR2 may form a spiro ring represented by the formula (30) below, together with the adjacent carbon atom (in the formula below, RRR represents a piperidyl group which may have substituents on the piperidine ring), (30)and R2 represents a benzothiazolyloxy group, quinolyloxy group, pyridyloxy group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis, multi-drug-resistant Mycobacterium tuberculosis, and atypical acid-fast bacteria.

  本发明提供了一种由以下一般式表示的2,3-二氢-6-硝基咪唑[2,1-b]噁唑化合物：(1)在上述式(1)中，R1代表氢原子或C1-C6烷基，n代表0至6的整数，R1和-(CH2)nR2可以与下面的式(30)一起形成一个螺环，与相邻的碳原子一起（在下面的式中，RRR代表可能在哌啶环上具有取代基的哌啶基），(30)和R2代表苯并噻唑氧基、喹啉氧基、吡啶氧基或类似物。该化合物对结核分枝杆菌、多药耐药结核分枝杆菌和非典型耐酸细菌具有出色的杀菌作用。
• Aroyl Fluorides as Bifunctional Reagents for Dearomatizing Fluoroaroylation of Benzofurans
  作者：Xiaoye Yu、Qing-Yuan Meng、Constantin G. Daniliuc、Armido Studer

  DOI：10.1021/jacs.2c01735

  日期：2022.4.27

  diastereoselectivity. Cascades proceed via radical/radical cross-coupling of a benzofuran radical cation generated in the photoredox catalysis cycle with a neutral ketyl radical formed through the NHC catalysis cycle. The redox-neutral transformation exhibits broad substrate scope and high functional group compatibility. With anhydrides as bifunctional reagents, dearomatizing aroyloxyacylation of benzofurans is

  2,3-二氢苯并呋喃支架广泛存在于天然产物和生物活性化合物中。在此，报道了用芳酰氟作为双官能试剂对苯并呋喃进行2,3-氟芳酰化，得到2,3-双官能化的二氢苯并呋喃。通过协同 NHC/光氧化还原催化发生的反应提供了 3-芳酰基-2-氟-2,3-二氢苯并呋喃，具有中等至良好的产率和高非对映选择性。级联通过光氧化还原催化循环中产生的苯并呋喃自由基阳离子与 NHC 催化循环中形成的中性羰基自由基的自由基/自由基交叉偶联来进行。氧化还原中性转化表现出广泛的底物范围和高官能团兼容性。以酸酐作为双功能试剂，实现了苯并呋喃的脱芳构化芳酰氧基酰化，该策略也可以应用于N-酰化吲哚，得到3-芳酰基-2-氟-二氢吲哚。
• Palladium(II)-Catalyzed Transformation of 3-Alkylbenzofurans to [2,3′-Bibenzofuran]-2′(3′H)-ones: Oxidative Dimerization of 3-Alkylbenzofurans
  作者：Beom Shin Cho、Young Keun Chung

  DOI：10.1021/acs.joc.6b02864

  日期：2017.2.17

  An unprecedented oxidative dimerization by palladium catalysis has been developed using PhI(OPiv)2 as a by-standing oxidant. This provides a facile method for the synthesis of quaternary 2,3′-bibenzofuran-2′(3′)-ones from readily accessible substrates. A plausible mechanism involving a Pd(II)–Pd(IV) catalytic cycle is proposed; a trace amount of water is required for subsequent oxidation.

  使用PhI（OPiv）2作为辅助氧化剂，已经开发出前所未有的钯催化氧化二聚反应。这提供了从容易获得的底物合成季2,3'-联苯并呋喃-2'（3'）-的简便方法。提出了涉及Pd（II）–Pd（IV）催化循环的合理机制。后续的氧化需要痕量的水。
• 2,3-Dihydro-6-Nitroimidazo (2,1-b) Oxazole Compounds for the Treatment of Tuberculosis
  申请人：Tsubouchi Hidetsugu

  公开号：US20080119478A1

  公开（公告）日：2008-05-22

  The present invention provides a 2,3-dihydro-6-nitroimidazo[2,1-b]oxazole compound represented by the following general formula: (1) in the above formula (1), R1 represents a hydrogen atom or C1-C6 alkyl group, n represents an integer of 0 to 6, R1 and —(CH2) n R2 may form a spiro ring represented by the formula (30) below, together with the adjacent carbon atom (in the formula below, RRR represents a piperidyl group which may have substituents on the piperidine ring), (30) and R2 represents a benzothiazolyloxy group, quinolyloxy group, pyridyloxy group or the like. The present compound has an excellent bactericidal action against Mycobacterium tuberculosis , multi-drug-resistant Mycobacterium tuberculosis , and atypical acid-fast bacteria.

  本发明提供了一种由下述通式（1）表示的2,3-二氢-6-硝基咪唑[2,1-b]噁唑化合物： 在上述式（1）中，R1代表氢原子或C1-C6烷基，n代表0到6的整数，R1和—(CH2)nR2可以与相邻的碳原子形成如下式（30）所示的螺环，其中，在下式中，RRR代表可能在哌啶环上具有取代基的哌啶基： （30）且R2代表苯并噻唑氧基、喹啉氧基、吡啶氧基或类似基团。该化合物对结核分枝杆菌、多重耐药结核分枝杆菌和非典型酸杆菌具有优异的杀菌作用。
• Energy transfer-enabled unsymmetrical diamination using bifunctional nitrogen-radical precursors
  作者：Guangying Tan、Mowpriya Das、Roman Kleinmans、Felix Katzenburg、Constantin Daniliuc、Frank Glorius

  DOI：10.1038/s41929-022-00883-3

  日期：——

  photosensitized dearomative unsymmetrical diamination of various electron-rich (hetero)arenes with bifunctional diamination reagents, producing a series of previously inaccessible vicinal diamines with excellent regio- and diastereoselectivity. A class of bifunctional nitrogen-radical precursors was developed to simultaneously generate two N-centred radicals with different reactivity via an energy transfer

  邻位二胺，尤其是不对称的，是生物活性分子、天然产物和药物中最常见的结构基序之一。虽然碳-碳双键的催化二胺化提供了快速获得二胺的途径，但这些反应通常仅限于通过过渡金属或高价碘试剂催化安装未分化的氨基官能团。在此，我们公开了各种富电子（杂）芳烃与双功能二化试剂的无金属、光敏化去芳构不对称二化反应，产生了一系列以前无法获得的具有出色区域选择性和非对映选择性的邻位二胺。开发了一类双功能氮自由基前体，通过能量转移过程同时产生两个具有不同反应活性的以氮为中心的自由基。此外，还发现该协议适用于多种烯烃。值得注意的是，形成的邻位二胺具有两个不同的氨基官能团，亚胺或酰胺单元可以很容易地正交转化为未受保护的胺，从而促进选择性下游转化。