(6-bromobenzo[1,3]dioxol-5-ylmethyl)(4-methoxybenzyl)amine | 872832-11-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并间二氧杂环戊烯类
• 英文名称: (6-bromobenzo[1,3]dioxol-5-ylmethyl)(4-methoxybenzyl)amine
• 英文别名: N-[(6-bromo-1,3-benzodioxol-5-yl)methyl]-1-(4-methoxyphenyl)methanamine
• CAS: 872832-11-6
• 化学式: C₁₆H₁₆BrNO₃
• 分子量: 350.212
• InChiKey: VMMJUEQGGKBNIW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  39.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (6-bromobenzo[1,3]dioxol-5-ylmethyl)(4-methoxybenzyl)amine 在 正丁基锂 、 叔丁基锂 、 sodium carbonate 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 16.0h， 生成 (benzyl)(4-methoxybenzyl)[6-(2-methoxyvinyl)benzo[1,3]dioxol-5-ylmethyl]amine
  参考文献：
  名称：

  Asymmetric Total Synthesis of the 1-epi-Aglycon of the Cripowellins A and B

  摘要：

  [GRAPHICS]The unusual [5.3.2]-bicyclic structure of the insecticidal Amaryllidaceae alkaloids cripowellin A (1) and B (2) has been synthesized for the first time via a sequence of Sharpless dihydroxylation, ring-closing metathesis, and intramolecular Heck reaction. The asymmetric synthesis of the 1-epiaglycon 82 proceeds with virtually complete diastereo- and enantioselectivity (de, ee >= 98%) in 13 steps and an overall yield of 5.6%. In addition, three alternative approaches toward the aglycon 3 are also described focusing on (1) the alkylation of the 2-benzazepinedithianes 35 and 36 with the electrophile 11, (2) a radical cyclization of the precursor (R/S,S,S)-39, and (3) an intramolecular arylation reaction of the aryl ketone 47.

  DOI：

  10.1021/jo0518093
• 作为产物：
  描述：

  (6-溴-苯并[D][1,3]二氧杂环戊烯-5-基)甲胺 在 sodium tetrahydroborate 作用下， 以 甲醇 、 苯 为溶剂， 反应 24.5h， 生成 (6-bromobenzo[1,3]dioxol-5-ylmethyl)(4-methoxybenzyl)amine
  参考文献：
  名称：

  Asymmetric Total Synthesis of the 1-epi-Aglycon of the Cripowellins A and B

  摘要：

  [GRAPHICS]The unusual [5.3.2]-bicyclic structure of the insecticidal Amaryllidaceae alkaloids cripowellin A (1) and B (2) has been synthesized for the first time via a sequence of Sharpless dihydroxylation, ring-closing metathesis, and intramolecular Heck reaction. The asymmetric synthesis of the 1-epiaglycon 82 proceeds with virtually complete diastereo- and enantioselectivity (de, ee >= 98%) in 13 steps and an overall yield of 5.6%. In addition, three alternative approaches toward the aglycon 3 are also described focusing on (1) the alkylation of the 2-benzazepinedithianes 35 and 36 with the electrophile 11, (2) a radical cyclization of the precursor (R/S,S,S)-39, and (3) an intramolecular arylation reaction of the aryl ketone 47.

  DOI：

  10.1021/jo0518093

文献信息

• Asymmetric Total Synthesis of the 1-<i>e</i><i>pi</i>-Aglycon of the Cripowellins A and B
  作者：Dieter Enders、Achim Lenzen、Michael Backes、Carsten Janeck、Kelly Catlin、Marie-Isabelle Lannou、Jan Runsink、Gerhard Raabe

  DOI：10.1021/jo0518093

  日期：2005.12.1

  [GRAPHICS]The unusual [5.3.2]-bicyclic structure of the insecticidal Amaryllidaceae alkaloids cripowellin A (1) and B (2) has been synthesized for the first time via a sequence of Sharpless dihydroxylation, ring-closing metathesis, and intramolecular Heck reaction. The asymmetric synthesis of the 1-epiaglycon 82 proceeds with virtually complete diastereo- and enantioselectivity (de, ee >= 98%) in 13 steps and an overall yield of 5.6%. In addition, three alternative approaches toward the aglycon 3 are also described focusing on (1) the alkylation of the 2-benzazepinedithianes 35 and 36 with the electrophile 11, (2) a radical cyclization of the precursor (R/S,S,S)-39, and (3) an intramolecular arylation reaction of the aryl ketone 47.