(1R,2S)-2-amino-1-(2,2-dimethyl-1,3-benzodioxol-5-yl)propan-1-ol | 188649-93-6

• 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: (1R,2S)-2-amino-1-(2,2-dimethyl-1,3-benzodioxol-5-yl)propan-1-ol
• CAS: 188649-93-6
• 化学式: C₁₂H₁₇NO₃
• 分子量: 223.272
• InChiKey: XITRYNQTCNFKAX-CPCISQLKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  64.7
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (1R,2S)-2-amino-1-(2,2-dimethyl-1,3-benzodioxol-5-yl)propan-1-ol 在 palladium on activated charcoal 氢气 、 三乙胺 作用下， 以 乙醇 、 二氯甲烷 、 甲苯 为溶剂， 反应 6.5h， 生成 (2S)-1-(2,2-dimethyl-1,3-benzodioxol-5-yl)propan-2-amine
  参考文献：
  名称：

  Stereoselective Synthesis of (S)-3,4-Methylenedioxyamphetamines from (R)-Cyanohydrins

  摘要：

  AbstractA stereoselective synthesis of (S)‐3,4‐methylenedioxyamphetamines (S)‐7, which are highly interesting as psychoactive compounds, is described. Starting from readily available (R)‐cyanohydrins (R)‐2 the 2‐amino‐1‐aryl alcohols (1R,2S)‐4 were obtained with high diastereoselectivity by addition of Grignard reagents to the O‐protected cyanohydrins (R)‐3, transimination of the addition products A with primary amines, and hydrogenation of the imino intermediates B with NaBH4. For the hydrogenation of the benzylic hydroxyl group in the 1,2‐amino alcohols (1R,2S)‐4 a new, very efficient method was developed. The optically pure amphetamines (S)‐7 were obtained under very mild conditions by catalytic hydrogenation of the oxazolidinones (4S,5R)‐6, which were readily available by phosgenation of the amino alcohols (1R,2S)‐4.

  DOI：

  10.1002/chem.19970030825
• 作为产物：
  描述：

  (2R)-2-(2,2-dimethyl-1,3-benzodioxol-5-yl)-2-hydroxyacetonitrile 在 吡啶 、 甲醇 、 sodium tetrahydroborate 作用下， 以 乙醚 为溶剂， 反应 20.0h， 生成 (1R,2S)-2-amino-1-(2,2-dimethyl-1,3-benzodioxol-5-yl)propan-1-ol
  参考文献：
  名称：

  从（R）-氰醇立体合成（1 R）-和（1 R，2 S）-1-芳基-2-烷基氨基醇

  摘要：

  在不消旋的情况下，用LiAlH 4氢化（R）-氰醇（R）-1 ，得到（R）-2-氨基醇（R）-3 。（1 - [R，2小号）-2-氨基醇（1R，2S）-4通过加入甲基格氏至O-甲硅烷基保护的氰醇（R）-2-具有高非对映选择性得到和用NaBH随后氢化4。N-烷基化的2-氨基醇（R）-8和（1R，2S）-9可以通过相应的2-氨基醇（R）-3和（1R，2S）-4的还原烷基化来制备，或通过格氏试剂加成产物与伯胺的转氨反应，然后再用NaBH 4氢化。与N-未取代的亚胺相比，在N-烷基亚氨基化合物的情况下，氢化的非对映选择性较低。

  DOI：

  10.1016/s0957-4166(96)00527-7

文献信息

• Stereoselective synthesis of (1R)- and (1R,2S)-1-aryl-2-alkylamino alcohols from (R)-cyanohydrins
  作者：Franz Effenberger、Beate Gutterer、Jürgen Jäger

  DOI：10.1016/s0957-4166(96)00527-7

  日期：1997.2

  Hydrogenation of (R)-cyanohydrins (R)-1 with LiAlH4 occurs without racemization to give the (R)-2-amino alcohols (R)-3. (1R,2S)-2-Amino alcohols (1R,2S)-4 are obtained with high diastereoselectivity by addition of methyl Grignard to O-silyl protected cyanohydrins (R)-2 and subsequent hydrogenation with NaBH4. The N-alkylated 2-amino alcohols (R)-8 and (1R,2S)-9 can be prepared either by reductive alkylation

  在不消旋的情况下，用LiAlH 4氢化（R）-氰醇（R）-1 ，得到（R）-2-氨基醇（R）-3 。（1 - [R，2小号）-2-氨基醇（1R，2S）-4通过加入甲基格氏至O-甲硅烷基保护的氰醇（R）-2-具有高非对映选择性得到和用NaBH随后氢化4。N-烷基化的2-氨基醇（R）-8和（1R，2S）-9可以通过相应的2-氨基醇（R）-3和（1R，2S）-4的还原烷基化来制备，或通过格氏试剂加成产物与伯胺的转氨反应，然后再用NaBH 4氢化。与N-未取代的亚胺相比，在N-烷基亚氨基化合物的情况下，氢化的非对映选择性较低。
• Stereoselective Synthesis of (S)-3,4-Methylenedioxyamphetamines from (R)-Cyanohydrins
  作者：Franz Effenberger、Jürgen Jäger

  DOI：10.1002/chem.19970030825

  日期：1997.8

  AbstractA stereoselective synthesis of (S)‐3,4‐methylenedioxyamphetamines (S)‐7, which are highly interesting as psychoactive compounds, is described. Starting from readily available (R)‐cyanohydrins (R)‐2 the 2‐amino‐1‐aryl alcohols (1R,2S)‐4 were obtained with high diastereoselectivity by addition of Grignard reagents to the O‐protected cyanohydrins (R)‐3, transimination of the addition products A with primary amines, and hydrogenation of the imino intermediates B with NaBH4. For the hydrogenation of the benzylic hydroxyl group in the 1,2‐amino alcohols (1R,2S)‐4 a new, very efficient method was developed. The optically pure amphetamines (S)‐7 were obtained under very mild conditions by catalytic hydrogenation of the oxazolidinones (4S,5R)‐6, which were readily available by phosgenation of the amino alcohols (1R,2S)‐4.