(3R,4R)-3-hydroxy-4-(4-methoxyanilino)-4-(3-nitrophenyl)butan-2-one | 1269058-69-6

• 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: (3R,4R)-3-hydroxy-4-(4-methoxyanilino)-4-(3-nitrophenyl)butan-2-one
• CAS: 1269058-69-6
• 化学式: C₁₇H₁₈N₂O₅
• 分子量: 330.34
• InChiKey: GACJOFADFXIBDT-SJORKVTESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  24
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  104
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  间硝基苯甲醛 、 甲氧苯胺 、 羟基丙酮 在 (2S,3R)-O-(n-octanoyl)-L-threonine 作用下， 以 N-甲基吡咯烷酮 为溶剂， 反应 4.0h， 生成 (3R,4R)-3-hydroxy-4-(4-methoxyanilino)-4-(3-nitrophenyl)butan-2-one 、 3-hydroxy-4-(4-methoxyanilino)-4-(3-nitrophenyl)butan-2-one
  参考文献：
  名称：

  Simple and inexpensive threonine-based organocatalysts for the highly diastereo- and enantioselective direct large-scale syn-aldol and anti-Mannich reactions of α-hydroxyacetone

  摘要：

  Simple and inexpensive threonine-based organocatalysts that promote syn-aldol reactions and three-component asymmetric anti-Mannich reactions of alpha-hydroxyacetone achieving a respectable level of enantioselectivities are reported. The syn-aldol products could be obtained with up to a 99:1 syn/anti ratio and > 99% ee while the anti-Mannich products could be obtained with up to a 96:4 anti/syn ratio and > 99% ee. Catalyst 1c can be used efficiently on a large-scale with the enantioselectivities of the syn-aldol and anti-Mannich reactions being maintained at the same level, which offers a great possibility for application in industry. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2011.06.022

文献信息

• Threonine-surfactant organocatalysts for the highly diastereo- and enantioselective direct anti-Mannich reactions of hydroxyacetone
  作者：Chuanlong Wu、Xiangkai Fu、Xuebing Ma、Shi Li、Chao Li

  DOI：10.1016/j.tetlet.2010.08.085

  日期：2010.11

  by the reaction of threonine with acyl chlorides at room temperature in trifluoroacetic acid on a large-scale without protecting groups involved or chromatographic techniques, and those threonine-surfactant organocatalysts mediated the direct asymmetric anti-Mannich reactions of hydroxyacetone and anilines with aldehydes to synthesize anti-1,2-amino alcohols in good yields (75–93%) and highly enantioselectivities

  在这项工作中，第一步是在室温下将苏氨酸与酰氯在三氟乙酸中大规模反应而没有涉及的保护基团或色谱技术，一次合成了几种新的作为有机催化剂的l-苏氨酸衍生物。苏氨酸表面活性剂有机催化剂介导了羟基丙酮和苯胺与醛的直接不对称抗曼尼希反应，以高收率（75-93％）和高对映选择性（高达99％ee）合成抗-1,2-氨基醇。