(S)-1-hydroxy-3-methyl-1,1-diphenylbutan-2-aminium trifluoroacetate | 1284303-80-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (S)-1-hydroxy-3-methyl-1,1-diphenylbutan-2-aminium trifluoroacetate
• 英文别名: (2S)-2-amino-3-methyl-1,1-diphenylbutan-1-ol;2,2,2-trifluoroacetic acid
• CAS: 1284303-80-5
• 化学式: C₂HF₃O₂*C₁₇H₂₁NO
• 分子量: 369.384
• InChiKey: IKEMKHQQHSRGKJ-NTISSMGPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.54
• 重原子数：
  26
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  83.6
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  (S)-(-)-2-氨基-3-甲基-1,1-二苯基-1-丁醇 、 三氟乙酸 以 二氯甲烷 为溶剂， 反应 0.08h， 以100%的产率得到(S)-1-hydroxy-3-methyl-1,1-diphenylbutan-2-aminium trifluoroacetate
  参考文献：
  名称：

  Enantioselective Diels–Alder Reaction of 1,2-Dihydropyridines with Aldehydes Using β-Amino Alcohol Organocatalyst

  摘要：

  The enantioselective Diels Alder reaction of 1,2-dihydropyridines with aldehydes using an easily prepared optically active beta-amino alcohol catalyst was found to provide optically active isoquinuclidines, an efficient synthetic intermediate of pharmaceutically important compounds such as oseltamivir phosphate, with a satisfactory chemical yield and enantioselectivity (up to 96%, up to 98% ee). In addition, the obtained highly optically pure isoquinuclidine was easily converted to an optically active piperidine having four successive carbon centers.

  DOI：

  10.1021/jo501433c
• 作为试剂：
  描述：

  N-benzyloxycarbonyl-1,2-dihydropyridine 、 丙烯醛 在 (S)-1-hydroxy-3-methyl-1,1-diphenylbutan-2-aminium trifluoroacetate 作用下， 以 水 、 乙腈 为溶剂， 反应 24.0h， 生成 benzyl 7-formyl-2-azabicyclo[2.2.2]oct-5-ene-2-carboxylate
  参考文献：
  名称：

  （-）-奎奴那利的对映选择性形式全合成

  摘要：

  （-）-奎奴果内酯的对映选择性正式全合成已从吡啶经8个纯化步骤的线性序列完成。关键步骤是（a）将所有三个立体中心固定在哌啶环上的有机催化Diels-Alder反应；（b）在桦木还原条件下，保护基能够使异喹核苷骨架脱氧；（c）路易斯酸（TiCl 4）催化分子内二羧酸的Friedel-Crafts环化；（d）一锅非对映选择性酮还原-分子内环化形成恶唑烷酮，从而使反式-几何安装。在合成过程中，观察到在桦木还原条件下，缺电子的异喹核苷骨架中C–N键的有趣还原性裂解。这是首次尝试合成（-）-奎奴那利的核心骨架。

  DOI：

  10.1021/acs.orglett.9b03477

文献信息

• A highly enantioselective Diels–Alder reaction of 1,2-dihydropyridine using a simple β-amino alcohol organocatalyst for a practical synthetic methodology of oseltamivir intermediate
  作者：Chonticha Suttibut、Yoshihito Kohari、Ko Igarashi、Hiroto Nakano、Masafumi Hirama、Chigusa Seki、Haruo Matsuyama、Koji Uwai、Nobuhiro Takano、Yuko Okuyama、Kenichi Osone、Mitsuhiro Takeshita、Eunsang Kwon

  DOI：10.1016/j.tetlet.2011.06.109

  日期：2011.9

  An easily prepared chiral amino alcohol catalyst was found to provide an efficient synthetic intermediate of oseltamivir with excellent chemical yield and enantioselectivity (up to 98% yield and up to 98% ee) in enantioselective Diels-Alder reactions of 1,2-dihydropylidines with acroleins. (C) 2011 Elsevier Ltd. All rights reserved.
• Enantioselective Diels–Alder Reaction of 1,2-Dihydropyridines with Aldehydes Using β-Amino Alcohol Organocatalyst
  作者：Yoshihito Kohari、Yuko Okuyama、Eunsang Kwon、Taniyuki Furuyama、Nagao Kobayashi、Teppei Otuki、Jun Kumagai、Chigusa Seki、Koji Uwai、Gang Dai、Tatsuo Iwasa、Hiroto Nakano

  DOI：10.1021/jo501433c

  日期：2014.10.17

  The enantioselective Diels Alder reaction of 1,2-dihydropyridines with aldehydes using an easily prepared optically active beta-amino alcohol catalyst was found to provide optically active isoquinuclidines, an efficient synthetic intermediate of pharmaceutically important compounds such as oseltamivir phosphate, with a satisfactory chemical yield and enantioselectivity (up to 96%, up to 98% ee). In addition, the obtained highly optically pure isoquinuclidine was easily converted to an optically active piperidine having four successive carbon centers.