3-ethyl-5-methoxy-3-methyl-2-benzofuran-1(3H)-one | 1214272-67-9

• 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: 3-ethyl-5-methoxy-3-methyl-2-benzofuran-1(3H)-one
• 英文别名: 3-ethyl-5-methoxy-3-methylisobenzofuran-1(3H)-one；3-Ethyl-5-methoxy-3-methyl-2-benzofuran-1-one；3-ethyl-5-methoxy-3-methyl-2-benzofuran-1-one
• CAS: 1214272-67-9
• 化学式: C₁₂H₁₄O₃
• 分子量: 206.241
• InChiKey: FMZIZUWLYRYHDW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-(2-bromo-5-methoxyphenyl)butan-2-ol 在 咪唑 、 potassium acetate 、 palladium diacetate 、 4,5-双二苯基膦-9,9-二甲基氧杂蒽 作用下， 以 二氯甲烷 、 邻二甲苯 为溶剂， 反应 28.0h， 生成 3-ethyl-5-methoxy-3-methyl-2-benzofuran-1(3H)-one
  参考文献：
  名称：

  多米诺[Pd]-催化：一锅法合成异苯并呋喃-1（3 H）-一

  摘要：

  提出了一种高效的多米诺骨牌[Pd]催化，用于合成异苯并呋喃-1（3 H）-one。该策略显示了广泛的底物范围，并且适合于邻溴苄基叔/仲/伯醇。重要的是，该方法用于抗血小板药物邻苯二甲酸正丁酯和细胞毒性激动剂3a- [4'-甲氧基苄基] -5,7-二甲氧基邻苯二酚的合成。

  DOI：

  10.1021/acs.joc.6b01396

文献信息

• New, Facile Synthesis of 3,3-Disubstituted Phthalides Based on the Reaction of α-Substituted 2-Lithiostyrenes with Carbon Dioxide
  作者：Kazuhiro Kobayashi、Taketoshi Kozuki、Shuhei Fukamachi、Hisatoshi Konishi

  DOI：10.3987/com-09-11837

  日期：——

  A new method to prepare 3,3-disubstituted phthalides [isobenzofuran-1(3H)-ones] from alpha-substituted 2-bromostyrenes has been developed. The reaction of alpha-substituted 2-lithiostyrenes, generated in situ by bromine-lithium exchange between alpha-substituted 2-bromostyrenes and butyllithium, with carbon dioxide gave the corresponding lithium 2-vinylbenzoates, which upon treatment with concentrated hydrochloric acid afforded the desired products in one pot.
• Domino One-Pot Process for the Synthesis of Isobenzofuran-1(3<i>H</i>)-ones via [Cu]-Catalysis Using Water as the Green Solvent
  作者：Lodi Mahendar、Gedu Satyanarayana

  DOI：10.1021/acs.joc.5b00888

  日期：2015.7.17

  An efficient domino one-pot strategy via [Cu]-catalyzed intermolecular "cyanation" of o-bromobenzyl alcohols -> in situ intramolecular "nudeophilic attack" -> "hydrolysis" is presented, for the synthesis of isobenzofuran-1(3H)-ones. Significantly, the reaction is successfully carried out under environmentally benign conditions, using water as sole green solvent.
• Domino [Pd]-Catalysis: One-Pot Synthesis of Isobenzofuran-1(3<i>H</i>)-ones
  作者：Lodi Mahendar、Gedu Satyanarayana

  DOI：10.1021/acs.joc.6b01396

  日期：2016.9.2

  An efficient domino [Pd]-catalysis for the synthesis of isobenzofuran-1(3H)-ones is presented. The strategy shows broad substrate scope and is amenable to o-bromobenzyl tertiary/secondary/primary alcohols. Significantly, the method was applied to the synthesis of antiplatelet drug n-butyl phthalide and cytotoxic agonist 3a-[4′-methoxylbenzyl]-5,7-dimethoxyphthalide.

  提出了一种高效的多米诺骨牌[Pd]催化，用于合成异苯并呋喃-1（3 H）-one。该策略显示了广泛的底物范围，并且适合于邻溴苄基叔/仲/伯醇。重要的是，该方法用于抗血小板药物邻苯二甲酸正丁酯和细胞毒性激动剂3a- [4'-甲氧基苄基] -5,7-二甲氧基邻苯二酚的合成。