trifluoromethanesulfonic acid 2-(3,7-dimethyloct-6-enoyl)phenyl ester | 646522-81-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: trifluoromethanesulfonic acid 2-(3,7-dimethyloct-6-enoyl)phenyl ester
• 英文别名: [2-(3,7-Dimethyloct-6-enoyl)phenyl] trifluoromethanesulfonate
• CAS: 646522-81-8
• 化学式: C₁₇H₂₁F₃O₄S
• 分子量: 378.413
• InChiKey: DUARMIJNEMKUIT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  25
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  68.8
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  trifluoromethanesulfonic acid 2-(3,7-dimethyloct-6-enoyl)phenyl ester 在 potassium acetate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 4.0h， 以83%的产率得到2-(1,5-dimethyl-hex-4-enyl)-benzofuran-3-one
  参考文献：
  名称：

  Unexpected Migration and Oxidative Cyclization of Substituted 2-Acetophenone Triflates under Basic Conditions:  Synthetic and Mechanistic Insights

  摘要：

  Oxidative ring closure of alkyl-substituted 2-hydroxyacetophenone trifluoromethanesulfonate esters (triflates) occurs upon exposure to base in anaerobic DMF at 20-90 degreesC. Alkyl substitution is required for ring closure. A migrated enol triflate product forms at lower temperature in high yield via migration of the trifluoromethanesulfonate in the unsubstituted and monoalkyl-substituted cases. The alkyl-substituted enol triflates also enter into the benzofuran-3-one ring-forming process under thermal cyclization conditions. Potential mechanistic pathways are evaluated.

  DOI：

  10.1021/jo0352023
• 作为产物：
  描述：

  3,7-二甲基-6-辛烯酸 在 吡啶 、 正丁基锂 、 三氯化硼 、 N,N'-羰基二咪唑 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 0.92h， 生成 trifluoromethanesulfonic acid 2-(3,7-dimethyloct-6-enoyl)phenyl ester
  参考文献：
  名称：

  Unexpected Migration and Oxidative Cyclization of Substituted 2-Acetophenone Triflates under Basic Conditions:  Synthetic and Mechanistic Insights

  摘要：

  Oxidative ring closure of alkyl-substituted 2-hydroxyacetophenone trifluoromethanesulfonate esters (triflates) occurs upon exposure to base in anaerobic DMF at 20-90 degreesC. Alkyl substitution is required for ring closure. A migrated enol triflate product forms at lower temperature in high yield via migration of the trifluoromethanesulfonate in the unsubstituted and monoalkyl-substituted cases. The alkyl-substituted enol triflates also enter into the benzofuran-3-one ring-forming process under thermal cyclization conditions. Potential mechanistic pathways are evaluated.

  DOI：

  10.1021/jo0352023

文献信息

• Unexpected Migration and Oxidative Cyclization of Substituted 2-Acetophenone Triflates under Basic Conditions:  Synthetic and Mechanistic Insights
  作者：Jotham W. Coe、Krista E. Bianco、Brian P. Boscoe、Paige R. Brooks、Eric D. Cox、Michael G. Vetelino

  DOI：10.1021/jo0352023

  日期：2003.12.1

  Oxidative ring closure of alkyl-substituted 2-hydroxyacetophenone trifluoromethanesulfonate esters (triflates) occurs upon exposure to base in anaerobic DMF at 20-90 degreesC. Alkyl substitution is required for ring closure. A migrated enol triflate product forms at lower temperature in high yield via migration of the trifluoromethanesulfonate in the unsubstituted and monoalkyl-substituted cases. The alkyl-substituted enol triflates also enter into the benzofuran-3-one ring-forming process under thermal cyclization conditions. Potential mechanistic pathways are evaluated.