1,1-diethyl-3-(3'-indolyl)-(2S)-(N-methylamino)-1-propanol | 171007-12-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 1,1-diethyl-3-(3'-indolyl)-(2S)-(N-methylamino)-1-propanol
• 英文别名: (2S)-3-ethyl-1-(1H-indol-3-yl)-2-(methylamino)pentan-3-ol
• CAS: 171007-12-8
• 化学式: C₁₆H₂₄N₂O
• 分子量: 260.379
• InChiKey: LDRXLOAERCAGHR-HNNXBMFYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  48
• 氢给体数：
  3
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,1-diethyl-3-(3'-indolyl)-(2S)-(N-methylamino)-1-propanol 在 lithium aluminium tetrahydride 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 29.0h， 生成 1,1-diethyl-3-(3'-indolyl)-(2S)-(N-methyl-N-3'',3''-dimethylbutylamino)-1-propanol
  参考文献：
  名称：

  Chiral ligands derived from abrine. Part 6: Importance of a bulky N-alkyl group in indole-containing chiral β-tertiary amino alcohols for controlling enantioselectivity in addition of diethylzinc toward aldehydes

  摘要：

  A number of chiral beta-amino alcohols possessing a 3-indolylmethyl group have been synthesized from the alkaloid (S)-abrine and elucidated for potency in the catalytic enantioselective ethylation of PhCHO with Et2Zn. In general, the secondary amines 15a-d bearing a dialkylhydroxymethyl group induced (R)-1-phenyl-1-propanol, whereas 15e-g and 18 bearing a diarylhydroxymethyl group favored the (S)-enantiomer. In contrast, the beta-tertiary amino alcohols 20b d and 21 produced (R)-1-phenyl-1-propanol. regardless of the substituents at the carbon bearing the hydroxy group. Enantiomeric excess of 87.5% was obtained for (R)-1-phenyl-1-propanol using ligand 21 as the promoter. Eleven substituted benzaldehydes and naphth-aldehydes were examined for enantioselective ethylation by using 21 and the chiral alcohols were obtained in 93-97% ee, except for o-BrC6H4CHO and p-Me2NC6H4CHO. Excellent enantioselectivity was also observed in the ethylation of cyclohexanecarboxaldehyde (94.8% ee) and 2-thiophenecarboxaldehyde (94.9% ee) by using catalytic 21. The anti 5/4/4-fused tricyclic TS I was proposed to rationalize the asymmetric induction. The diethylhydroxymethyl and N-2-t-butylethyl groups are believed to enforce the preference for the anti-TS(R) I and it results in high enantioselectivity. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(00)00189-0
• 作为产物：
  描述：

  相思豆毒素 在 氯化亚砜 作用下， 以 四氢呋喃 为溶剂， 生成 1,1-diethyl-3-(3'-indolyl)-(2S)-(N-methylamino)-1-propanol
  参考文献：
  名称：

  源自盐水的手性配体8.游离配体构象偏爱以及苯甲醛中二乙基锌的添加的实验和理论研究

  摘要：

  三个结构相似的1,2,3,4-四氢-β-咔啉配体系列4a - d，6a - d和7a - d，以及两个系列的手性恶唑烷，8a - d和9a - g合成了α-己内酯并将其用作在苯甲醛中添加二乙基锌的手性催化剂。在每种情况下都获得了生成的1-苯基-1-丙醇的对映选择性，这些ee值在大多数情况下与游离配体的构象种群有关，如通过计算出的配体构象能差来表示氮转化形成的。这表明可能存在线性自由能关系。对（1）位于4a - d，6a - d和7a - d的C-3取代基上的R基团的碳链长度的对映选择性的影响或（2）位于8a - d中的C-5处的（2）对对映选择性的影响对9a - g进行了详细研究。根据观察到的相关性和配体的结构特征，提出了使用配体8a - d进行乙基转移时的过渡态结构。此外，当在该手性加成物中比较非对映体配体11和12时，成功预测了对映选择性的变化。

  DOI：

  10.1021/jo049754c

文献信息

• Chiral ligands derived from Abrine. 1. Synthesis of sec- and tert-β-amino alcohols and catalysis for enantioselective addition of diethylzinc toward aromatic aldehydes
  作者：Wei-Min Dai、Hua Jie Zhu、Xiao-Jiang Hao

  DOI：10.1016/0957-4166(95)00236-i

  日期：1995.8
• Chiral Ligands Derived from <i>Abrine</i> 8. An Experimental and Theoretical Study of Free Ligand Conformational Preferences and the Addition of Diethylzinc to Benzaldehyde
  作者：H. J. Zhu、J. X. Jiang、S. Saebo、C. U. Pittman

  DOI：10.1021/jo049754c

  日期：2005.1.1

  Three structurally similar series of 1,2,3,4-tetrahydro-β-carboline ligands, 4a−d, 6a−d and 7a−d, and two series of chiral oxazolidines, 8a−d and 9a−g, were synthesized and used as chiral catalysts in the addition of diethylzinc to benzaldehyde. The enantioselectivities of the resulting 1-phenyl-1-propanol were obtained in each case, and these ee values were, in most cases, related to the conformational

  三个结构相似的1,2,3,4-四氢-β-咔啉配体系列4a - d，6a - d和7a - d，以及两个系列的手性恶唑烷，8a - d和9a - g合成了α-己内酯并将其用作在苯甲醛中添加二乙基锌的手性催化剂。在每种情况下都获得了生成的1-苯基-1-丙醇的对映选择性，这些ee值在大多数情况下与游离配体的构象种群有关，如通过计算出的配体构象能差来表示氮转化形成的。这表明可能存在线性自由能关系。对（1）位于4a - d，6a - d和7a - d的C-3取代基上的R基团的碳链长度的对映选择性的影响或（2）位于8a - d中的C-5处的（2）对对映选择性的影响对9a - g进行了详细研究。根据观察到的相关性和配体的结构特征，提出了使用配体8a - d进行乙基转移时的过渡态结构。此外，当在该手性加成物中比较非对映体配体11和12时，成功预测了对映选择性的变化。
• Chiral ligands derived from abrine. Part 6: Importance of a bulky N-alkyl group in indole-containing chiral β-tertiary amino alcohols for controlling enantioselectivity in addition of diethylzinc toward aldehydes
  作者：Wei-Min Dai、Hua-Jie Zhu、Xiao-Jiang Hao

  DOI：10.1016/s0957-4166(00)00189-0

  日期：2000.6

  A number of chiral beta-amino alcohols possessing a 3-indolylmethyl group have been synthesized from the alkaloid (S)-abrine and elucidated for potency in the catalytic enantioselective ethylation of PhCHO with Et2Zn. In general, the secondary amines 15a-d bearing a dialkylhydroxymethyl group induced (R)-1-phenyl-1-propanol, whereas 15e-g and 18 bearing a diarylhydroxymethyl group favored the (S)-enantiomer. In contrast, the beta-tertiary amino alcohols 20b d and 21 produced (R)-1-phenyl-1-propanol. regardless of the substituents at the carbon bearing the hydroxy group. Enantiomeric excess of 87.5% was obtained for (R)-1-phenyl-1-propanol using ligand 21 as the promoter. Eleven substituted benzaldehydes and naphth-aldehydes were examined for enantioselective ethylation by using 21 and the chiral alcohols were obtained in 93-97% ee, except for o-BrC6H4CHO and p-Me2NC6H4CHO. Excellent enantioselectivity was also observed in the ethylation of cyclohexanecarboxaldehyde (94.8% ee) and 2-thiophenecarboxaldehyde (94.9% ee) by using catalytic 21. The anti 5/4/4-fused tricyclic TS I was proposed to rationalize the asymmetric induction. The diethylhydroxymethyl and N-2-t-butylethyl groups are believed to enforce the preference for the anti-TS(R) I and it results in high enantioselectivity. (C) 2000 Elsevier Science Ltd. All rights reserved.