(S)-3,3,4-triphenyl-1-tosylazetidin-2-one | 1146139-57-2

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (S)-3,3,4-triphenyl-1-tosylazetidin-2-one
• 英文别名: (4S)-1-(4-methylphenyl)sulfonyl-3,3,4-triphenylazetidin-2-one
• CAS: 1146139-57-2
• 化学式: C₂₈H₂₃NO₃S
• 分子量: 453.562
• InChiKey: ATWNTECWGCKUTJ-SANMLTNESA-N

物化性质

• 沸点：
  589.0±60.0 °C(predicted)
• 密度：
  1.284±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  33
• 可旋转键数：
  5
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  62.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  N-亚苄基-4-甲基苯磺酰胺 、 二苯乙烯酮 在 (3aR,7aR)-1,3-bis(naphthalen-1-ylmethyl)-3a,4,5,6,7,7a-hexahydro-1H-benzo[d]imidazol-3-ium tetrafluoroborate 、 双(三甲基硅烷基)氨基钾 作用下， 以 乙醚 、 甲苯 为溶剂， 反应 2.0h， 生成 (R)-3,3,4-triphenyl-1-tosylazetidin-2-one 、 (S)-3,3,4-triphenyl-1-tosylazetidin-2-one
  参考文献：
  名称：

  Chiral relay in NHC-mediated asymmetric β-lactam synthesis I; substituent effects in NHCs derived from (1R,2R)-cyclohexane-1,2-diamine

  摘要：

  The synthesis of a range of C-2-symmetric imidazolinium salts from (1R,2R)-cyclohexane-1,2-diamine, and an evaluation of the reactivity and asymmetric induction of the derived NHCs as catalysts for the asymmetric synthesis of beta-lactams, is reported. In this series, optimal enantioselectivity (up to 70% ee) is observed using N-benzyl or N-1-naphthylmethyl-substituted NHCs, consistent with a chiral relay effect operating to dictate the stereochemical outcome of this reaction. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2010.03.001

文献信息

• Enantiopure imidazolinium-dithiocarboxylates as highly selective novel organocatalysts
  作者：Oksana Sereda、Amélie Blanrue、René Wilhelm

  DOI：10.1039/b817991c

  日期：——

  Asymmetric imidazolinium-dithiocarboxylates have been found for the first time to be highly selective catalysts; in the present case, the novel organocatalysts were able to catalyze the Staudinger reaction in up to 96% ee and 99% yield.

  首次发现不对称咪唑啉鎓-二硫代羧酸盐是高选择性催化剂；在本例中，新型有机催化剂能够以高达 96% ee 和 99% 的产率催化施陶丁格反应。
• Chiral relay in NHC-mediated asymmetric β-lactam synthesis I; substituent effects in NHCs derived from (1R,2R)-cyclohexane-1,2-diamine
  作者：Nicolas Duguet、Adele Donaldson、Stuart M. Leckie、James Douglas、Peter Shapland、Thomas B. Brown、Gwydion Churchill、Alexandra M.Z. Slawin、Andrew D. Smith

  DOI：10.1016/j.tetasy.2010.03.001

  日期：2010.3

  The synthesis of a range of C-2-symmetric imidazolinium salts from (1R,2R)-cyclohexane-1,2-diamine, and an evaluation of the reactivity and asymmetric induction of the derived NHCs as catalysts for the asymmetric synthesis of beta-lactams, is reported. In this series, optimal enantioselectivity (up to 70% ee) is observed using N-benzyl or N-1-naphthylmethyl-substituted NHCs, consistent with a chiral relay effect operating to dictate the stereochemical outcome of this reaction. (C) 2010 Elsevier Ltd. All rights reserved.