tert-butyl 2-bromo-4-methoxyphenethylcarbamate | 1273546-88-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: tert-butyl 2-bromo-4-methoxyphenethylcarbamate
• 英文别名: N-Boc-N-[2-(2-bromo-4-methoxy-phenyl)ethyl]amine；tert-butyl N-[2-(2-bromo-4-methoxyphenyl)ethyl]carbamate
• CAS: 1273546-88-5
• 化学式: C₁₄H₂₀BrNO₃
• 分子量: 330.222
• InChiKey: FDYQIPXBSOTVRN-UHFFFAOYSA-N

物化性质

• 沸点：
  416.8±35.0 °C(Predicted)
• 密度：
  1.283±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl 2-bromo-4-methoxyphenethylcarbamate 在 2,6-二甲基吡啶 、 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 0.08h， 以73%的产率得到2-(2-bromo-4-methoxyphenyl)ethanamine
  参考文献：
  名称：

  Synthesis of Substituted Indoline and Carbazole by Benzyne-Mediated Cyclization–Functionalization

  摘要：

  A benzyne-mediated synthesis of substituted indolines and carbazoles was developed. The reaction includes generation of benzyne using Mg(TMP)(2)center dot 2LiCl as a base, cyclization, and trapping the resulting organomagnesium intermediate with an electrophile to provide a series of substituted indolines and carbazoles in a regiospecific manner. This was applied to a concise five-pot total synthesis of heptaphylline.

  DOI：

  10.1021/ol400597f
• 作为产物：
  描述：

  对硝基苯基甲烷磺酸酯 在 N-溴代丁二酰亚胺(NBS) 、 硫酸 、 palladium 10% on activated carbon 、 氢气 、 异丙基氯化镁 、 potassium carbonate 、 potassium hydroxide 作用下， 以 甲醇 、 乙醚 、 乙醇 、 二氯甲烷 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 丙酮 、 甲苯 、 乙腈 为溶剂， -40.0~20.0 ℃ 、6.89 MPa 条件下， 反应 24.25h， 生成 tert-butyl 2-bromo-4-methoxyphenethylcarbamate
  参考文献：
  名称：

  Synthesis of Substituted Indoline and Carbazole by Benzyne-Mediated Cyclization–Functionalization

  摘要：

  A benzyne-mediated synthesis of substituted indolines and carbazoles was developed. The reaction includes generation of benzyne using Mg(TMP)(2)center dot 2LiCl as a base, cyclization, and trapping the resulting organomagnesium intermediate with an electrophile to provide a series of substituted indolines and carbazoles in a regiospecific manner. This was applied to a concise five-pot total synthesis of heptaphylline.

  DOI：

  10.1021/ol400597f

文献信息

• Synthesis of Chiral 1-Substituted Tetrahydroisoquinolines by the Intramolecular 1,3-Chirality Transfer Reaction Catalyzed by Bi(OTf)₃
  作者：Nobuyuki Kawai、Ryuzou Abe、Mika Matsuda、Jun’ichi Uenishi

  DOI：10.1021/jo102452d

  日期：2011.4.1

  The intramolecular 1,3-chirality transfer reaction of chiral amino alcohols 1 with 99% ee was developed to construct chiral 1-substituted tetrahydroisoquinoline 2. Bi(OTf)3 (10 mol %)-catalyzed cyclization of 1 (R = H) afforded (S)-1-(E)-propenyl tetrahydroisoquinoline 2 (R = H) in 83% yield with a ratio of 98:2. The stereochemistry at the newly formed chiral center was produced by a syn SN2′-type

  开展了手性氨基醇1与99％ee的分子内1,3-手性转移反应，构建了手性1取代的四氢异喹啉2。Bi（OTf）3（10 mol％）催化1的环化反应（R = H）得到（S）-1-（E）-丙烯基四氢异喹啉2（R = H），产率为83：2，比率为98：2 。在新形成的手性中心的立体化学是通过syn S N 2'型过程产生的。在该反应中，苯环1上的取代基显着影响反应性和选择性。提出了合理的反应机理。
• Synthesis of Substituted Indoline and Carbazole by Benzyne-Mediated Cyclization–Functionalization
  作者：Toshiharu Noji、Hideto Fujiwara、Kentaro Okano、Hidetoshi Tokuyama

  DOI：10.1021/ol400597f

  日期：2013.4.19

  A benzyne-mediated synthesis of substituted indolines and carbazoles was developed. The reaction includes generation of benzyne using Mg(TMP)(2)center dot 2LiCl as a base, cyclization, and trapping the resulting organomagnesium intermediate with an electrophile to provide a series of substituted indolines and carbazoles in a regiospecific manner. This was applied to a concise five-pot total synthesis of heptaphylline.