(3'R)-8-(3'-methylpyrrolidinyl)menthol | 186597-30-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: (3'R)-8-(3'-methylpyrrolidinyl)menthol
• CAS: 186597-30-8
• 化学式: C₁₅H₂₉NO
• 分子量: 239.401
• InChiKey: QZKXPODXERQNNC-AAVRWANBSA-N

物化性质

• 沸点：
  321.9±15.0 °C(Predicted)
• 密度：
  0.975±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  17.0
• 可旋转键数：
  2.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  23.47
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  (3'R)-8-(3'-methylpyrrolidinyl)menthol 在 氢氧化钾 、 pyridinium chlorochromate 作用下， 生成 (R)-3-甲基吡咯烷盐酸盐
  参考文献：
  名称：

  Regio- and Stereoselective 5-exo Radical Cyclizations on a Chiral Perhydro-1,3-benzoxazine Moiety. An Access to Enantiopure 3-Alkylpyrrolidines

  摘要：

  Both enantiomers of chiral, nonracemic S-alkyl-substituted pyrolidines are prepared by diastereoselective 5-exo-trig cyclization on (-)-8-aminomenthol-derived perhydro-1,3-benzoxazines used as chiral auxiliaries, followed by elimination of the menthol appendage. The diastereoselective radical cyclization is promoted by tributyltin hydride and occurs on a 3-aza-5-hexenyl-type radical, leading to five-membered rings in high yield. The stereocontrol of the cyclization is strongly influenced by 1,3-allylic strain so that an appropriate substitution pattern on the olefin-acceptor and the presence of a vicinal stereocenter are crucial for achieving good diastereoselectivity. The enantiopure pyrrolidines are obtained in three steps with concomitant recovering of the starting (+)-pulegone auxiliary.

  DOI：

  10.1021/jo9816921
• 作为产物：
  描述：

  2-(phenylseleno)methylperhydro-1,3-benzoxazine 在 lithium aluminium tetrahydride 、 三氯化铝 、 偶氮二异丁腈 、 三正丁基氢锡 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙腈 、 苯 为溶剂， 反应 48.17h， 生成 (3'R)-8-(3'-methylpyrrolidinyl)menthol
  参考文献：
  名称：

  Regio- and Stereoselective 5-exo Radical Cyclizations on a Chiral Perhydro-1,3-benzoxazine Moiety. An Access to Enantiopure 3-Alkylpyrrolidines

  摘要：

  Both enantiomers of chiral, nonracemic S-alkyl-substituted pyrolidines are prepared by diastereoselective 5-exo-trig cyclization on (-)-8-aminomenthol-derived perhydro-1,3-benzoxazines used as chiral auxiliaries, followed by elimination of the menthol appendage. The diastereoselective radical cyclization is promoted by tributyltin hydride and occurs on a 3-aza-5-hexenyl-type radical, leading to five-membered rings in high yield. The stereocontrol of the cyclization is strongly influenced by 1,3-allylic strain so that an appropriate substitution pattern on the olefin-acceptor and the presence of a vicinal stereocenter are crucial for achieving good diastereoselectivity. The enantiopure pyrrolidines are obtained in three steps with concomitant recovering of the starting (+)-pulegone auxiliary.

  DOI：

  10.1021/jo9816921

文献信息

• A Novel Approach to Chiral, Nonracemic Pyrrolidines by 5-exo-trig Diastereoselective Radical Cyclization on Acrylamides Derived from (−)-8-Aminomenthol
  作者：Celia Andrés、Juan P. Duque-Soladana、Rafael Pedrosa

  DOI：10.1021/jo981693t

  日期：1999.6.1

  alpha,beta-Unsaturated amides supported on perhydro-1,3-benzoxazines derived from (-)-8-aminomenthol as chiral auxiliaries undergo regio- and stereoselective 5-exo-trig radical cyclization leading to diastereomeric five-membered lactams. These cyclization products are transformed into enantiopure 3,4-disubstituted pyrrolidines by reduction with aluminum hydride followed by removal of the menthol appendage.
• Diastereoselective 5-exo-trig radical cyclisation on N-Acryloyl-tetrahydro-1,3-oxazines. A novel approach to enantiopure 3-substituted pyrrolidines
  作者：Celia Andrés、J.Pablo Duque-Soladana、Jesús M. Iglesias、Rafael Pedrosa

  DOI：10.1016/s0040-4039(96)02091-6

  日期：1996.12

  N-Acryloyl-2-(phenylselenomethyl)-tetrahydro-1,3-oxazine 1 generates a carbon-centred radical in the presence of tri-n-butyltin hydride and AIBN. This radical underwent diastereoselective 5-exo-trig cyclisation leading to a mixture of five-membered lactams 2a and 2b (d.e. 68%). Chromatographic separation of the diastereomers and elimination of the chiral auxiliary provided enantiopure (R)-3-methylpyrrolidine in good chemical yield. Copyright (C) 1996 Elsevier Science Ltd