tert-butyl (S)-3-benzyl-3-(hydroxymethyl)-2-oxoindoline-1-carboxylate | 1229652-60-1

• 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: tert-butyl (S)-3-benzyl-3-(hydroxymethyl)-2-oxoindoline-1-carboxylate
• 英文别名: (S)-tert-butyl-3-benzyl-3-(hydroxymethyl)-2-oxoindoline-1-carboxylate；tert-butyl (3S)-3-benzyl-3-(hydroxymethyl)-2-oxoindole-1-carboxylate
• CAS: 1229652-60-1
• 化学式: C₂₁H₂₃NO₄
• 分子量: 353.418
• InChiKey: ZMWTVHIGRJHQJC-OAQYLSRUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  66.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  tert-butyl 3-benzyl-2-oxoindoline-1-carboxylate 、 聚合甲醛 在 1-[(1R,2R)-2-(dimethylamino)-1,2-diphenylethyl]-3-(4-nitrophenyl)thiourea 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 15.0h， 以99%的产率得到tert-butyl (S)-3-benzyl-3-(hydroxymethyl)-2-oxoindoline-1-carboxylate
  参考文献：
  名称：

  Organocatalytic Enantioselective Hydroxymethylation of Oxindoles with Paraformaldehyde as C1 Unit

  摘要：

  A bifunctional thiourea-tertiary amine-catalyzed asymmetric hydroxymethylation of 3-substituted oxindoles using paraformaldehyde as the C1 unit was developed. A wide scope of oxindoles, bearing C3 sterically congested quaternary carbon centers, were smoothly obtained in good to excellent yields (up to 99%) and high enantioselectivities (up to 91% ee) under mild reaction conditions. A more significant feature of this approach employs cheap and readily available paraformaldehyde as a hydroxymethylation Cl unit, which is activated by chiral bifunctional thiourea organocatalysts.

  DOI：

  10.1021/jo100769n

文献信息

• Asymmetric Organocatalyzed Transfer Hydroxymethylation of Isoindolinones Using Formaldehyde Surrogates
  作者：David Svestka、Pavel Bobal、Mario Waser、Jan Otevrel

  DOI：10.1021/acs.orglett.4c00818

  日期：2024.3.29

  asymmetric transfer hydroxymethylation of activated isoindolinones, allowing us to prepare the enantioenriched hydroxymethylated adducts in good to excellent yields (48–96%) and enantiopurities (81:19–97:3 e.r.). To increase the reaction rate without compromising the selectivity, carefully optimized formaldehyde surrogates were employed, providing a convenient source of anhydrous formaldehyde with a base-triggered

  基于哌啶的竹本催化剂已成功用于活化异吲哚啉酮的新型不对称转移羟甲基化，使我们能够以良好至优异的产率（48-96%）和对映体纯度（81:19-97:3 er）制备对映体富集的羟甲基化加合物。 ）。为了在不影响选择性的情况下提高反应速率，采用了仔细优化的甲醛替代物，提供了具有碱触发释放的无水甲醛的便捷来源。底物范围包括 34 个条目，显示了不对称转化的相当普遍性，大多数条目在 24-48 小时内表现出完全转化。还进行了放大实验和多个对映选择性下游转化，表明了产品的预期合成效用。
• Organocatalytic Enantioselective Hydroxymethylation of Oxindoles with Paraformaldehyde as C1 Unit
  作者：Xiong-Li Liu、Yu-Hua Liao、Zhi-Jun Wu、Lin-Feng Cun、Xiao-Mei Zhang、Wei-Cheng Yuan

  DOI：10.1021/jo100769n

  日期：2010.7.16

  A bifunctional thiourea-tertiary amine-catalyzed asymmetric hydroxymethylation of 3-substituted oxindoles using paraformaldehyde as the C1 unit was developed. A wide scope of oxindoles, bearing C3 sterically congested quaternary carbon centers, were smoothly obtained in good to excellent yields (up to 99%) and high enantioselectivities (up to 91% ee) under mild reaction conditions. A more significant feature of this approach employs cheap and readily available paraformaldehyde as a hydroxymethylation Cl unit, which is activated by chiral bifunctional thiourea organocatalysts.