4-bromo-2-methylpent-3-en-1-ol | 864058-37-7

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 乙烯基卤化物
• 英文名称: 4-bromo-2-methylpent-3-en-1-ol
• 英文别名: (E,2S)-4-bromo-2-methylpent-3-en-1-ol
• CAS: 864058-37-7
• 化学式: C₆H₁₁BrO
• 分子量: 179.057
• InChiKey: OEIZOTTZFQWEOZ-HVPJABPFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-bromo-2-methylpent-3-en-1-ol 在 正丁基锂 、 pyridine-SO3 complex 、 四丁基氟化铵 、 碘 作用下， 生成 2-((E)-(S)-3-Iodo-1-methyl-but-2-enyl)-[1,3]dithiane
  参考文献：
  名称：

  A Scalable Route to Trisubstituted (E)-Vinyl Bromides

  摘要：

  An effective, readily scalable two-step synthesis of trisubstituted (E)-vinyl bromides involving bromination of alpha,beta-unsaturated lactones followed by hydrolytic fragmentation has been developed. Several trisubstituted (E)-vinyl bromides, including multigram quantities of (+)-(E)-4-bromo-2-methyl-3-pentenol, a synthetic intermediate required for the C(8)-C(l 1) moieties of (+)-tedanolide (1) and (+)-13-deoxytedanolide (2), illustrate the utility of this protocol.

  DOI：

  10.1021/ol051376q
• 作为产物：
  描述：

  3,4-dibromo-3,5-dimethyltetrahydropyran-2-one 在 lithium hydroxide 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以73%的产率得到4-bromo-2-methylpent-3-en-1-ol
  参考文献：
  名称：

  A Scalable Route to Trisubstituted (E)-Vinyl Bromides

  摘要：

  An effective, readily scalable two-step synthesis of trisubstituted (E)-vinyl bromides involving bromination of alpha,beta-unsaturated lactones followed by hydrolytic fragmentation has been developed. Several trisubstituted (E)-vinyl bromides, including multigram quantities of (+)-(E)-4-bromo-2-methyl-3-pentenol, a synthetic intermediate required for the C(8)-C(l 1) moieties of (+)-tedanolide (1) and (+)-13-deoxytedanolide (2), illustrate the utility of this protocol.

  DOI：

  10.1021/ol051376q

文献信息

• A Scalable Route to Trisubstituted (<i>E</i>)-Vinyl Bromides
  作者：Cheon-Gyu Cho、Won-Suk Kim、Amos B. Smith

  DOI：10.1021/ol051376q

  日期：2005.8.1

  An effective, readily scalable two-step synthesis of trisubstituted (E)-vinyl bromides involving bromination of alpha,beta-unsaturated lactones followed by hydrolytic fragmentation has been developed. Several trisubstituted (E)-vinyl bromides, including multigram quantities of (+)-(E)-4-bromo-2-methyl-3-pentenol, a synthetic intermediate required for the C(8)-C(l 1) moieties of (+)-tedanolide (1) and (+)-13-deoxytedanolide (2), illustrate the utility of this protocol.