5-(4-chloro-benzoyl)-furan-2-carboxylic acid methyl ester | 65650-03-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-(4-chloro-benzoyl)-furan-2-carboxylic acid methyl ester
• 英文别名: 5-(4-Chlorbenzoyl)-brenzschleimsaeuremethylester；methyl 5-(4-chlorobenzoyl)furan-2-carboxylate
• CAS: 65650-03-5
• 化学式: C₁₃H₉ClO₄
• mdl: MFCD22421283
• 分子量: 264.665
• InChiKey: WHMQBPABDWFILU-UHFFFAOYSA-N

物化性质

• 熔点：
  122 °C(Solv: ethanol (64-17-5); water (7732-18-5))
• 沸点：
  399.4±37.0 °C(Predicted)
• 密度：
  1.322±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.076
• 拓扑面积：
  56.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-(4-chloro-benzoyl)-furan-2-carboxylic acid methyl ester 在 sodium tetrahydroborate 、 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 1.5h， 生成 5-(4-Chloro-benzyl)-furan-2-carboxylic acid
  参考文献：
  名称：

  Regioselective and Stereoselective Pd-Catalyzed Intramolecular Arylation of Furans: Access to Spirooxindoles and 5H-Furo[2,3-c]quinolin-4-ones

  摘要：

  Herein, we report regio- and stereoselective intramolecular direct arylations of N-(2-bromophenyl)-2-furancarboxamides 1 to produce spirooxindoles 2 and 5H-furo[2,3-c]quinolin-4-ones 3 under different reaction conditions. Specifically, in the presence of Pd(PPh3)(4) as a catalyst, PPh3 as a ligand, and K2CO3 as a base, substrates 1 underwent intramolecular alpha-arylation, possibly via a Heck insertion pathway, to provide 2, with the Zeta-isomer being favored. When the base was t-BuOLi and R-1 was an aryl group, the reaction favored Epsilon-2, possibly via an electrophilic palladation pathway. In contrast, in the presence of PdCl2 as a catalyst, (o-OMePh)(3)P as a ligand, and PivOH as an additive, substrates 1 underwent intramolecular beta-arylation to provide 3, possibly via a concerted metalation-deprotonation process.

  DOI：

  10.1021/acs.joc.6b01774

文献信息

• Molecular Diversity of Tonghaosu: Synthesis of Lactam-Containing Tonghaosu Analogs
  作者：Yu-Lin Wu、Biao-Lin Yin、Zheng-Min Yang、Tai-Shan Hu

  DOI：10.1055/s-2003-41042

  日期：——

  A new type of tonghaosu analogs containing spiroketal and lactam functionality was synthesized from methyl 2-furoate and amino alcohols. The stereoselective control of spiroketal chirality was also explored.

  以 2-糠酸甲酯和氨基醇为原料，合成了一种含有螺酮和内酰胺官能团的新型 tonghaosu 类似物。此外，还探索了螺酮手性的立体选择性控制。
• A Novel Entry to Spirofurooxindoles Involving Tandem Dearomatization of Furan Ring and Intramolecular Friedel- Crafts Reaction
  作者：Biao-Lin Yin、Jin-Qiang Lai、Ze-Ren Zhang、Huan-Feng Jiang

  DOI：10.1002/adsc.201100034

  日期：2011.8

  A copper sulfate pentahydrate-catalyzed intramolecular Friedel–Crafts reaction using an oxocarbenium species derived from a furan ring as the alkylating agent was developed for the first time. By using this protocol, spirofurooxindoles 9 with multi-reactive sites were synthesized simply and concisely. In addition, selective hydrogenation of the endo-cyclic double bond and full hydrogenation of the

  首次开发了使用五水合硫酸铜催化的分子内Friedel-Crafts反应，该反应使用衍生自呋喃环的氧碳鎓类作为烷基化剂。通过使用该协议，具有多个反应位点的螺呋喃氧吲哚9可以简单，简明地合成。此外，选择性加氢内切-环状双键和全氢化内切和外切spirofurooxindoles的-环双键9提供spirofurooxindoles 11和12，分别。
• KNOPPOVA V.; JURASEK A.; VOEROES V., COLLECT. CZECH. CHEM. COMMUNS <CCCC-AK>, 1977, 42, NO 11, 3175-3179
  作者：KNOPPOVA V.、 JURASEK A.、 VOEROES V.

  DOI：——

  日期：——
• Regioselective and Stereoselective Pd-Catalyzed Intramolecular Arylation of Furans: Access to Spirooxindoles and 5<i>H</i>-Furo[2,3-<i>c</i>]quinolin-4-ones
  作者：Jianchao Liu、Hui Peng、Yongjie Yang、Huanfeng Jiang、Biaolin Yin

  DOI：10.1021/acs.joc.6b01774

  日期：2016.10.21

  Herein, we report regio- and stereoselective intramolecular direct arylations of N-(2-bromophenyl)-2-furancarboxamides 1 to produce spirooxindoles 2 and 5H-furo[2,3-c]quinolin-4-ones 3 under different reaction conditions. Specifically, in the presence of Pd(PPh3)(4) as a catalyst, PPh3 as a ligand, and K2CO3 as a base, substrates 1 underwent intramolecular alpha-arylation, possibly via a Heck insertion pathway, to provide 2, with the Zeta-isomer being favored. When the base was t-BuOLi and R-1 was an aryl group, the reaction favored Epsilon-2, possibly via an electrophilic palladation pathway. In contrast, in the presence of PdCl2 as a catalyst, (o-OMePh)(3)P as a ligand, and PivOH as an additive, substrates 1 underwent intramolecular beta-arylation to provide 3, possibly via a concerted metalation-deprotonation process.