2-butyl-5-(1,2-dimethylpropyl)furan | 1177010-10-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-butyl-5-(1,2-dimethylpropyl)furan
• 英文别名: 2-butyl-5-[(2R)-3-methylbutan-2-yl]furan
• CAS: 1177010-10-4
• 化学式: C₁₃H₂₂O
• 分子量: 194.317
• InChiKey: ANYXSSVQHKNXJG-LLVKDONJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.69
• 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：

  2-butyl-5-(1,2-dimethylpropyl)furan 在 sodium periodate 、 ruthenium(III) trichloride hydrate 、 水 作用下， 以 四氯化碳 、 乙腈 为溶剂， 反应 15.0h， 生成 (R)-2,3-二甲基丁酸 、 正戊酸
  参考文献：
  名称：

  Enantioselective Friedel–Crafts reactions of ethenetricarboxylates and substituted pyrroles and furans and intramolecular reaction of benzene derivatives

  摘要：

  Compared to enantioselective Friedel-Crafts reactions of indoles, reactions of alkylidene malonates with monocyclic aromatic compounds generally proceed with low enantioselectivity. The Friedel-Crafts reactions of ethenetricarboxylates 1 and monocyclic heteroaromatic compounds, such as substituted pyrroles and furans were investigated. The reaction of 1 with 2,4-dimethylpyrrole in the presence of a chiral bis-oxazoline-copper(II) complex (10 mol %) in tetrahydrofuran at room temperature gave alkylated products in up to 72% ee. The reaction of 1 with 2-substituted furans gave alkylated products in 46-62% ee. The absolute stereochemistry of the furan Friedel-Crafts product 7e was determined by transformation to the known 2,3-dimethylbutyric acid. The intramolecular reaction of benzene derivatives gave cyclized products up to 56% ee. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.05.016
• 作为产物：
  描述：

  C₁₆H₂₈O₁₀S₃ 在 三乙基硼氢化锂 、 水 作用下， 以 四氢呋喃 为溶剂， 生成 2-butyl-5-(1,2-dimethylpropyl)furan
  参考文献：
  名称：

  Enantioselective Friedel–Crafts reactions of ethenetricarboxylates and substituted pyrroles and furans and intramolecular reaction of benzene derivatives

  摘要：

  Compared to enantioselective Friedel-Crafts reactions of indoles, reactions of alkylidene malonates with monocyclic aromatic compounds generally proceed with low enantioselectivity. The Friedel-Crafts reactions of ethenetricarboxylates 1 and monocyclic heteroaromatic compounds, such as substituted pyrroles and furans were investigated. The reaction of 1 with 2,4-dimethylpyrrole in the presence of a chiral bis-oxazoline-copper(II) complex (10 mol %) in tetrahydrofuran at room temperature gave alkylated products in up to 72% ee. The reaction of 1 with 2-substituted furans gave alkylated products in 46-62% ee. The absolute stereochemistry of the furan Friedel-Crafts product 7e was determined by transformation to the known 2,3-dimethylbutyric acid. The intramolecular reaction of benzene derivatives gave cyclized products up to 56% ee. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.05.016

文献信息

• Enantioselective Friedel–Crafts reactions of ethenetricarboxylates and substituted pyrroles and furans and intramolecular reaction of benzene derivatives
  作者：Shoko Yamazaki、Shinichi Kashima、Taiki Kuriyama、Yuko Iwata、Tsumoru Morimoto、Kiyomi Kakiuchi

  DOI：10.1016/j.tetasy.2009.05.016

  日期：2009.6

  Compared to enantioselective Friedel-Crafts reactions of indoles, reactions of alkylidene malonates with monocyclic aromatic compounds generally proceed with low enantioselectivity. The Friedel-Crafts reactions of ethenetricarboxylates 1 and monocyclic heteroaromatic compounds, such as substituted pyrroles and furans were investigated. The reaction of 1 with 2,4-dimethylpyrrole in the presence of a chiral bis-oxazoline-copper(II) complex (10 mol %) in tetrahydrofuran at room temperature gave alkylated products in up to 72% ee. The reaction of 1 with 2-substituted furans gave alkylated products in 46-62% ee. The absolute stereochemistry of the furan Friedel-Crafts product 7e was determined by transformation to the known 2,3-dimethylbutyric acid. The intramolecular reaction of benzene derivatives gave cyclized products up to 56% ee. (C) 2009 Elsevier Ltd. All rights reserved.