(E)-2-fluoro-4-methylsulfanylbut-2-enoic acid | 151607-78-2

• 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: (E)-2-fluoro-4-methylsulfanylbut-2-enoic acid
• CAS: 151607-78-2
• 化学式: C₅H₇FO₂S
• 分子量: 150.174
• InChiKey: WZXBNXSRGZSFTF-DUXPYHPUSA-N

物化性质

• 沸点：
  306.3±37.0 °C(predicted)
• 密度：
  1.266±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.29
• 重原子数：
  9.0
• 可旋转键数：
  3.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  37.3
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  (E)-2-fluoro-4-methylsulfanylbut-2-enoic acid 在 三乙胺 作用下， 以 乙醚 为溶剂， 反应 1.0h， 生成 (E)-1-Diazo-3-fluoro-5-methylsulfanyl-pent-3-en-2-one
  参考文献：
  名称：

  Methods for the stereoselective synthesis of 2-fluoroalkenoates. Carbonyl condensation reactions of 3,3-bis(methylthio)-2-fluoropropenal, a highly-functionalized fluoroacrylate cation equivalent

  摘要：

  New methodology for the preparation of 2-fluoroacrylates has been developed on the basis of the reagent 3,3-bis(methylthio)-2-fluoropropenal. This highly-functionalized aldehyde is prepared by the condensation of carbon disulfide with fluoroacetonitrile followed by reduction of the nitrile. It is subjected to nucleophilic addition with organometallic reagents and enolates to yield allylic alcohol products that can be rearranged under acidic conditions to (Z)-2-fluoroacrylate thioesters. Other desired fluoroacrylates are also available via conventional fluorinated Homer-Wadsworth-Emmons or Reformatsky reagents.

  DOI：

  10.1021/jo00073a029
• 作为产物：
  描述：

  Ethyl (E)-4-(methylthio)-2-fluorobut-2-enoate 在 sodium hydroxide 作用下， 反应 7.0h， 以82%的产率得到(E)-2-fluoro-4-methylsulfanylbut-2-enoic acid
  参考文献：
  名称：

  Methods for the stereoselective synthesis of 2-fluoroalkenoates. Carbonyl condensation reactions of 3,3-bis(methylthio)-2-fluoropropenal, a highly-functionalized fluoroacrylate cation equivalent

  摘要：

  New methodology for the preparation of 2-fluoroacrylates has been developed on the basis of the reagent 3,3-bis(methylthio)-2-fluoropropenal. This highly-functionalized aldehyde is prepared by the condensation of carbon disulfide with fluoroacetonitrile followed by reduction of the nitrile. It is subjected to nucleophilic addition with organometallic reagents and enolates to yield allylic alcohol products that can be rearranged under acidic conditions to (Z)-2-fluoroacrylate thioesters. Other desired fluoroacrylates are also available via conventional fluorinated Homer-Wadsworth-Emmons or Reformatsky reagents.

  DOI：

  10.1021/jo00073a029