ethyl (R)-6-oxo-2,4-diphenyl-1,4,5,6-tetrahydropyridine-3-carboxylate | 1334529-04-2

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: ethyl (R)-6-oxo-2,4-diphenyl-1,4,5,6-tetrahydropyridine-3-carboxylate
• 英文别名: (R)-ethyl 6-oxo-2,4-diphenyl-1,4,5,6-tetrahydropyridine-3-carboxylate
• CAS: 1334529-04-2
• 化学式: C₂₀H₁₉NO₃
• 分子量: 321.376
• InChiKey: ZTYBNAXCUKPHEE-MRXNPFEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.26
• 重原子数：
  24.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  55.4
• 氢给体数：
  1.0
• 氢受体数：
  3.0

反应信息

• 作为产物：
  描述：

  反式肉桂醛 、 (Z)-3-氨基-3-苯基-2-丙烯酸乙酯 在 (-)-(5aS,10bR)-5a,10b-二氢-2-(2,4,6-三甲基苯基)-4H,6H-茚并[2,1-b][1,2,4]三唑[4,3-d][1,4]氯化恶唑鎓一水合物 、 3,3',5,5'-四叔丁基-4,4'-联苯醌 、 N,N-二异丙基乙胺 作用下， 以 甲苯 为溶剂， 反应 12.0h， 生成 ethyl (R)-6-oxo-2,4-diphenyl-1,4,5,6-tetrahydropyridine-3-carboxylate 、 (S)-ethyl 6-oxo-2,4-diphenyl-1,4,5,6-tetrahydropyridine-3-carboxylate
  参考文献：
  名称：

  Enantioselective Synthesis of Dihydropyridinones via NHC-Catalyzed Aza-Claisen Reaction

  摘要：

  N-Heterocyclic carbene catalyzed aza-Claisen annulations of enals or their alpha'-hydrozyenone surrogates with vinylogous amides afford dihydropyridinones. The reaction proceeds with a broad range of substrates, and no nitrogen protecting group is required.

  DOI：

  10.1021/ol202272t

文献信息

• Oxidative NHC catalysis: direct activation of β sp³ carbons of saturated acid chlorides
  作者：Shi-Ya Zhu、Hua Zhang、Qing-Wei Ma、Dou Liu、Xin-Ping Hui

  DOI：10.1039/c8cc08578a

  日期：——

  activation of saturated acid chlorides by oxidative N-heterocyclic carbene catalysis has been successfully utilized to synthesize enantio-enriched spirooxindole lactones and δ-lactones. The reaction involves the transformation of the β sp3 carbon of saturated acid chlorides into an electrophilic carbon as a key step. The product was obtained in excellent yield and stereoselectivity.

  已成功利用氧化N-杂环卡宾催化对饱和酰氯的首次活化，来合成对映体富集的螺并吲哚内酯和δ-内酯。该反应涉及将饱和酰氯的βsp 3碳转化为亲电子碳的关键步骤。以优异的产率和立体选择性获得产物。