chloro(hex-5-enyloxy)acetic acid methyl ester | 161254-22-4

• 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: chloro(hex-5-enyloxy)acetic acid methyl ester
• 英文别名: Methyl 2-chloro-2-hex-5-enoxyacetate
• CAS: 161254-22-4
• 化学式: C₉H₁₅ClO₃
• 分子量: 206.669
• InChiKey: BBNWSOZHPPMIHY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  13
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  chloro(hex-5-enyloxy)acetic acid methyl ester 在 (t-BuO)2 作用下， 以 二氯甲烷 为溶剂， 反应 2.83h， 生成 2-<(ethoxythiocarbonyl)sulfanyl>-8-oxooctanoic acid methyl ester
  参考文献：
  名称：

  Xanthate Transfer Cyclization of Glycolic Acid-Derived Radicals. Synthesis of Five- to Eight-Membered Ring Ethers

  摘要：

  A novel method for the preparation of functionalized five- to eight-membered ring ethers is described. This method involves the xanthate transfer radical cyclization of 2-(alken-1-oxy)-2-[(ethoxythio-carbonyl)sulfanyl]acetic acid methyl esters 6 to give good yields of xanthate-substituted five- to eight-membered ethers 7 and/or 8, depending on the length of the carbon chain. These cyclic ethers are usually obtained as mixtures of diastereomers. The cyclizations are performed at 150-160 degrees C in tert-butylbenzene with di-tert-butyl peroxide as the initiator. This group-transfer radical cyclization was successfully applied in a total synthesis of lauthisan (44). The use of benzoyl xanthate (56) as a catalyst allows a visible light-induced xanthate transfer cyclization to a tetrahydrofuran in high yield.

  DOI：

  10.1021/jo00101a027
• 作为产物：
  描述：

  acetoxy(hex-5-enyloxy)acetic acid methyl ester 在 盐酸 、 乙酰氯 作用下， 以 乙醚 为溶剂， 反应 0.5h， 以87%的产率得到chloro(hex-5-enyloxy)acetic acid methyl ester
  参考文献：
  名称：

  Xanthate Transfer Cyclization of Glycolic Acid-Derived Radicals. Synthesis of Five- to Eight-Membered Ring Ethers

  摘要：

  A novel method for the preparation of functionalized five- to eight-membered ring ethers is described. This method involves the xanthate transfer radical cyclization of 2-(alken-1-oxy)-2-[(ethoxythio-carbonyl)sulfanyl]acetic acid methyl esters 6 to give good yields of xanthate-substituted five- to eight-membered ethers 7 and/or 8, depending on the length of the carbon chain. These cyclic ethers are usually obtained as mixtures of diastereomers. The cyclizations are performed at 150-160 degrees C in tert-butylbenzene with di-tert-butyl peroxide as the initiator. This group-transfer radical cyclization was successfully applied in a total synthesis of lauthisan (44). The use of benzoyl xanthate (56) as a catalyst allows a visible light-induced xanthate transfer cyclization to a tetrahydrofuran in high yield.

  DOI：

  10.1021/jo00101a027