(E)-2-[2-(3-isopropoxy-4-methoxystyryl)-4-isopropoxy-5-methoxyphenyl]-N-hydroxy-2-methylprop-2-en-1-amine | 1108621-42-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-2-[2-(3-isopropoxy-4-methoxystyryl)-4-isopropoxy-5-methoxyphenyl]-N-hydroxy-2-methylprop-2-en-1-amine
• 英文别名: N-[2-[5-methoxy-2-[(E)-2-(4-methoxy-3-propan-2-yloxyphenyl)ethenyl]-4-propan-2-yloxyphenyl]ethyl]-N-(2-methylprop-2-enyl)hydroxylamine
• CAS: 1108621-42-6
• 化学式: C₂₈H₃₉NO₅
• 分子量: 469.621
• InChiKey: JEPGGCCYPBKEQK-PKNBQFBNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.8
• 重原子数：
  34
• 可旋转键数：
  13
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  60.4
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  4-异丙氧基-3-甲氧基苯甲醛 在 copper(l) iodide 、 trans-bis(triphenylphosphine)palladium dichloride 、 水 、 氢气 、 溴 、 sodium cyanoborohydride 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 、 tin(ll) chloride 作用下， 以 四氢呋喃 、 甲醇 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 120.0 ℃ 、101.33 kPa 条件下， 反应 48.0h， 生成 1-(3-isopropoxy-4-methoxybenzyl)-1,2,3,4-tetrahydro-7-isopropoxy-6-methoxyisoquinoline-N-(2-methylallyloxide) 、 (E)-2-[2-(3-isopropoxy-4-methoxystyryl)-4-isopropoxy-5-methoxyphenyl]-N-hydroxy-2-methylprop-2-en-1-amine
  参考文献：
  名称：

  Studies on Difficult Intramolecular Hydroaminations in the Context of Four Syntheses of Alkaloid Natural Products

  摘要：

  Examples of intramolecular alkene hydroaminations forming six-membered ring systems are rare, especially for systems in which the double bond is disubstituted. Such cyclizations have important synthetic relevance. Herein we report a systematic study of these cyclizations using recently developed Cope-type hydroamination methodologies. Difficult intramolecular alkene hydroaminations were used as key steps in syntheses of 2-epi-pumiliotoxin C, coniine, N-norreticuline and desbromoarborescidine A. This effort required the development of optimized hydroamination conditions to improve the efficiency of the cyclizations. Collectively, our results show that Cope-type cyclizations can be achieved on a variety of challenging substrates and proceed under similar conditions for both N-H and N-substituted hydroxylamines.

  DOI：

  10.1021/jo4023149

文献信息

• Bourgeois, Joffre; Dion, Isabelle; Cebrowski, Pamela H., Journal of the American Chemical Society, 2009, vol. 131, p. 874 - 875
  作者：Bourgeois, Joffre、Dion, Isabelle、Cebrowski, Pamela H.、Loiseau, Francis、Bedard, Anne-Catherine、Beauchemin, Andre M.

  DOI：——

  日期：——
• Studies on Difficult Intramolecular Hydroaminations in the Context of Four Syntheses of Alkaloid Natural Products
  作者：Isabelle Dion、Jean-François Vincent-Rocan、Lei Zhang、Pamela H. Cebrowski、Marie-Eve Lebrun、Jennifer Y. Pfeiffer、Anne-Catherine Bédard、André M. Beauchemin

  DOI：10.1021/jo4023149

  日期：2013.12.20

  Examples of intramolecular alkene hydroaminations forming six-membered ring systems are rare, especially for systems in which the double bond is disubstituted. Such cyclizations have important synthetic relevance. Herein we report a systematic study of these cyclizations using recently developed Cope-type hydroamination methodologies. Difficult intramolecular alkene hydroaminations were used as key steps in syntheses of 2-epi-pumiliotoxin C, coniine, N-norreticuline and desbromoarborescidine A. This effort required the development of optimized hydroamination conditions to improve the efficiency of the cyclizations. Collectively, our results show that Cope-type cyclizations can be achieved on a variety of challenging substrates and proceed under similar conditions for both N-H and N-substituted hydroxylamines.