4-甲基-2-苯并呋喃-1(3H)-酮 | 2211-83-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异香豆素
• 中文名称: 4-甲基-2-苯并呋喃-1(3H)-酮
• 英文名称: 4-methylphthalide
• 英文别名: 4-Methylphthalid；4-methylisobenzofuran-1(3H)-one；4-methyl-2-benzofuran-1(3H)-one；4-methyl-3H-2-benzofuran-1-one
• CAS: 2211-83-8
• 化学式: C₉H₈O₂
• 分子量: 148.161
• InChiKey: DGSGLUKYJOQJLL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2932209090

反应信息

• 作为反应物：
  描述：

  4-甲基-2-苯并呋喃-1(3H)-酮 在 N-溴代丁二酰亚胺(NBS) 、 过氧化氢苯甲酰 、 水 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 15.0h， 生成 3-Methoxy-4-methylphthalid
  参考文献：
  名称：

  Aromatische Spirane, 21. Mitt: Darstellung von Methylphthalaldehyds�uren und ihren Ethylund Methylestern als Synthone f�r Synthesen von methylierten 2,2?-Spirobiindandionen

  摘要：

  The isomeric methyl phthalaldehydic acids 11 were obtained from phthalides 4 by bromation (NBS) to the 3-bromo derivatives 7 and subsequent hydrolysis with water. 4 in turn were accessible from dimethyl methyl benzoates 1 by dibromination with NBS and subsequent thermical cyclization to the bromo derivatives 3 which, on catalytic dehalogenation, afforded the phthalides 4. Reaction of 11 with methanol or ethanol gave the pseudo-esters 13 and 14, resp. Short treatment of 11 with diazomethane on the other hand yielded the methyl formyl benzoates 15b to 15e. Prolonged reaction (several hours) gave the oxiranyl compounds 17; in addition, the acetonyl derivatives 18 were also found, obviously formed by a double methylene insertion into 15. All reactions proceeded with good to excellent yields.

  DOI：

  10.1007/bf00807401
• 作为产物：
  描述：

  2,3-二甲基苯甲酸甲酯 在 palladium on activated charcoal calcium hydroxide 、 N-溴代丁二酰亚胺(NBS) 、 过氧化氢苯甲酰 、 氢气 作用下， 以 1,4-二氧六环 、 四氯化碳 为溶剂， 180.0 ℃ 、275.79 kPa 条件下， 反应 56.0h， 生成 4-甲基-2-苯并呋喃-1(3H)-酮
  参考文献：
  名称：

  Aromatische Spirane, 21. Mitt: Darstellung von Methylphthalaldehyds�uren und ihren Ethylund Methylestern als Synthone f�r Synthesen von methylierten 2,2?-Spirobiindandionen

  摘要：

  The isomeric methyl phthalaldehydic acids 11 were obtained from phthalides 4 by bromation (NBS) to the 3-bromo derivatives 7 and subsequent hydrolysis with water. 4 in turn were accessible from dimethyl methyl benzoates 1 by dibromination with NBS and subsequent thermical cyclization to the bromo derivatives 3 which, on catalytic dehalogenation, afforded the phthalides 4. Reaction of 11 with methanol or ethanol gave the pseudo-esters 13 and 14, resp. Short treatment of 11 with diazomethane on the other hand yielded the methyl formyl benzoates 15b to 15e. Prolonged reaction (several hours) gave the oxiranyl compounds 17; in addition, the acetonyl derivatives 18 were also found, obviously formed by a double methylene insertion into 15. All reactions proceeded with good to excellent yields.

  DOI：

  10.1007/bf00807401

文献信息

• Incorporation of carbon dioxide into phthalides via ligand-free copper-catalyzed direct carboxylation of benzoxasiloles
  作者：Thanh V. Q. Nguyen、José A. Rodríguez-Santamaría、Woo-Jin Yoo、Shū Kobayashi

  DOI：10.1039/c7gc00917h

  日期：——

  The direct carboxylation of benzoxasiloles with carbon dioxide proceeded smoothly under mild conditions using copper iodide as a catalyst to afford phthalides after an acid work-up. Broad substrate scope and application of this methodology for the synthesis of natural products highlight the synthetic utility of this protocol.

  在弱酸条件下，使用碘化铜作为催化剂，在温和的条件下，苯并二甲酚与二氧化碳的直接羧化反应顺利进行，从而在酸处理后得到邻苯二甲酸盐。该方法在天然产物合成中的广泛底物范围和应用突出了该方案的合成效用。
• [EN] INHIBITORS OF THE RENAL OUTER MEDULLARY POTASSIUM CHANNEL<br/>[FR] INHIBITEURS DU CANAL À POTASSIUM DE LA MEDULLA EXTERNE DU REIN
  申请人：MERCK SHARP & DOHME

  公开号：WO2013039802A1

  公开（公告）日：2013-03-21

  This invention relates to compounds having structural Formula I: and pharmaceutically acceptable salts thereof which are inhibitors of the Renal Outer Medullary Potassium (ROMK) channel (Kir1.1). The compounds of Formula I are useful as diuretics and natriuretics and therefore are useful for the therapy and prophylaxis of disorders resulting from excessive salt and water retention, including cardiovascular diseases such as hypertension and chronic and acute heart failure.

  这项发明涉及具有结构式I的化合物及其药学上可接受的盐，这些化合物是肾外髓钾（ROMK）通道（Kir1.1）的抑制剂。式I的化合物可用作利尿剂和钠利尿剂，因此可用于治疗和预防由过多盐分和水分潴留引起的疾病，包括高血压和慢性和急性心力衰竭等心血管疾病。
• Chiral Bicyclic Imidazole‐Catalyzed Acylative Dynamic Kinetic Resolution for the Synthesis of Chiral Phthalidyl Esters
  作者：Muxing Zhou、Tatiana Gridneva、Zhenfeng Zhang、Ende He、Yangang Liu、Wanbin Zhang

  DOI：10.1002/anie.202012445

  日期：2021.1.18

  Utilizing a chiral bicyclic imidazole organocatalyst and adopting a continuous injection process, an alternative route has been developed for the efficient synthesis of chiral phthalidyl ester prodrugs via dynamic kinetic resolution of 3‐hydroxyphthalides through enantioselective acylation (up to 99 % ee). The computational studies suggest a general base catalytic mechanism differing from the widely

  利用手性双环咪唑有机催化剂并采用连续注射工艺，已开发出另一种途径，可通过对映选择性酰化作用（3-99％ee）动态动力学拆分3-羟基邻苯二酚来有效合成手性邻苯二甲酸酯基前药。计算研究表明，一般的基础催化机理不同于广泛接受的亲核催化机理。关键过渡态的结构分析表明，催化剂与底物之间的CH-π相互作用而不是先前考虑的阳离子/π-π相互作用是引起观察到的立体控制的主要因素。
• Enantioselective synthesis of 3-aryl-phthalides through a nickel-catalyzed stereoconvergent cross-coupling reaction
  作者：Si-Yu Xu、Rui Zhang、Shu-Sheng Zhang、Chen-Guo Feng

  DOI：10.1039/d1ob00487e

  日期：——

  A nickel-catalyzed asymmetric Suzuki–Miyaura cross-coupling of racemic 3-bromo-phthalides and arylboronic acids was realized for the synthesis of diverse chiral 3-aryl-phthalides in moderate to excellent reaction yields. The reaction proceeded in a stereoconvergent manner and high enantioselectivities were observed for most examined examples. A number of functional groups like aldehyde, ester and bromide

  外消旋 3-溴代苯酞和芳基硼酸的镍催化不对称 Suzuki-Miyaura 交叉偶联可用于以中等至优异的反应产率合成多种手性 3-芳基苯酞。反应以立体收敛的方式进行，并且对于大多数检查的实施例都观察到了高对映选择性。许多官能团如醛、酯和溴化物具有良好的耐受性。杂芳族硼酸也是该反应中的有效偶联伙伴。
• [EN] AZA-A-RING INDENOISOQUINOLINE TOPOISOMERASE I POISONS<br/>[FR] POISONS DE TOPOISOMÉRASE I DE TYPE INDÉNOISOQUINOLÉINE À AZACYCLE A
  申请人：PURDUE RESEARCH FOUNDATION

  公开号：WO2017160898A1

  公开（公告）日：2017-09-21

  The invention described herein pertains to four series of aza-A-ring indenoisoquinolines, which are inhibitors of topoisomerase IB (Top1), and the processes for preparing said aza-A-ring indenoisoquinolines. Also described are methods for treating cancer in mammals using the described aza-A-ring indenoisoquinoline compounds or pharmaceutical formulations thereof.

  本发明涉及四系列氮杂-A-环吲哚异喹啉类化合物，这些化合物是拓扑异构酶IB（Top1）的抑制剂，以及制备所述氮杂-A-环吲哚异喹啉类化合物的方法。还描述了利用所述氮杂-A-环吲哚异喹啉类化合物或其制剂治疗哺乳动物癌症的方法。

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