N-Benzyl-2-diazo-N-phenylmalonamic acid ethyl ester | 156115-76-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N-Benzyl-2-diazo-N-phenylmalonamic acid ethyl ester
• 英文别名: ethyl 3-(benzyl(phenyl)amino)-2-diazo-3-oxopropanoate；ethyl 3-(N-benzylanilino)-2-diazo-3-oxopropanoate
• CAS: 156115-76-3
• 化学式: C₁₈H₁₇N₃O₃
• 分子量: 323.351
• InChiKey: AFZBHLIBFHFLGK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  24
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  48.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N-Benzyl-2-diazo-N-phenylmalonamic acid ethyl ester 在 [Ir(dF(CF₃)ppy)₂(dtbbpy)](PF₆) 作用下， 以 2,2,2-三氟乙醇 为溶剂， 生成 ethyl 1-benzyl-2-oxoindoline-3-carboxylate
  参考文献：
  名称：

  光串联催化：通过可见光诱导的重氮酰胺通过有氧氧化序列的环化反应，有效合成3-酯-3-羟基-2-氧吲哚

  摘要：

  已经成功开发了基于单一铱光催化剂的前所未有的光串联催化。这种强大的策略包括两个机械上截然不同的催化循环，即光催化能量转移（ET）和单电子转移（SET）。新颖的方案允许在非常温和的条件下，通过环化/有氧氧化序列，从容易获得的重氮酰胺快速高效地构建生物学上和合成上重要的3-酯-3-羟基-2-吲哚衍生物。

  DOI：

  10.1002/asia.201402990
• 作为产物：
  描述：

  chlorocarbonyl-diazo-acetic acid ethyl ester 、 苯甲基苯胺 以 二氯甲烷 为溶剂， 反应 0.17h， 以89%的产率得到N-Benzyl-2-diazo-N-phenylmalonamic acid ethyl ester
  参考文献：
  名称：

  Ligand Effects in the Rhodium(II)-Catalyzed Reactions of .alpha.-Diazoamides. Oxindole Formation is Promoted by the Use of Rhodium(II) Perfluorocarboxamide Catalysts

  摘要：

  An improved procedure for the preparation of ethyl 2-diazomalonyl chloride ws developed which involves the reaction of ethyl diazoacetate with triphosgene. Using this diazo acid chloride, it was possible to prepare a variety of diazoamides from substituted amines. The rhodium(II)-catalyzed decomposition of these diazoamides was studied in order to probe the chemoselectivity of the carbenoid intermediates in intramolecular insertion reactions. Rhodium(II) acetate decomposition of N-benzyl-2-diazo-N-phenylmalonamic acid ethyl ester resulted in intramolecular C-H insertion to give ethyl 1,4-diphenyl-2-oxoazetidine-3-carboxylate. By changing the catalyst ligand to trifluoroacetamide, beta-lactam formation was completely suppressed in favor of the aromatic C-H insertion which produces an oxindole as the only detectable product. The competition between aliphatic and aromatic carbon-hydrogen insertion of 2-diazo-N-phenylmalonamic acid ethyl ester provides another example of ligand effectiveness in controlling chemoselectivity in dirhodium(II)-catalyzed metal carbene reactions. Thus, treatment of the N-isobutyldiazoanilide with rhodium(II) acetate results in exclusive aliphatic C-H insertion giving 4,4-dimethyl-2-oxo-1-phenylpyrrolidine-3-carboxylic acid ethyl ester, while the perfluorobutyramide ligand promotes oxidinole formation by aromatic C-H insertion. Several other rhodium(II)-catalyzed reactions were studied and were found to be highly catalyst dependent, rhodium(II) perfluorocarboxamides promoting aromatic C-H insertion, and hence oxindole formation, over O-H insertion, cyclization onto adjacent triple bonds, or cyclization to generate 1,3-dipolar intermediates.

  DOI：

  10.1021/jo00088a028

文献信息

• Ligand Effects in the Rhodium(II)-Catalyzed Reactions of .alpha.-Diazoamides. Oxindole Formation is Promoted by the Use of Rhodium(II) Perfluorocarboxamide Catalysts
  作者：David S. Brown、Mark C. Elliott、Christopher J. Moody、Timothy J. Mowlem、Joseph P. Jr. Marino、Albert Padwa

  DOI：10.1021/jo00088a028

  日期：1994.5

  An improved procedure for the preparation of ethyl 2-diazomalonyl chloride ws developed which involves the reaction of ethyl diazoacetate with triphosgene. Using this diazo acid chloride, it was possible to prepare a variety of diazoamides from substituted amines. The rhodium(II)-catalyzed decomposition of these diazoamides was studied in order to probe the chemoselectivity of the carbenoid intermediates in intramolecular insertion reactions. Rhodium(II) acetate decomposition of N-benzyl-2-diazo-N-phenylmalonamic acid ethyl ester resulted in intramolecular C-H insertion to give ethyl 1,4-diphenyl-2-oxoazetidine-3-carboxylate. By changing the catalyst ligand to trifluoroacetamide, beta-lactam formation was completely suppressed in favor of the aromatic C-H insertion which produces an oxindole as the only detectable product. The competition between aliphatic and aromatic carbon-hydrogen insertion of 2-diazo-N-phenylmalonamic acid ethyl ester provides another example of ligand effectiveness in controlling chemoselectivity in dirhodium(II)-catalyzed metal carbene reactions. Thus, treatment of the N-isobutyldiazoanilide with rhodium(II) acetate results in exclusive aliphatic C-H insertion giving 4,4-dimethyl-2-oxo-1-phenylpyrrolidine-3-carboxylic acid ethyl ester, while the perfluorobutyramide ligand promotes oxidinole formation by aromatic C-H insertion. Several other rhodium(II)-catalyzed reactions were studied and were found to be highly catalyst dependent, rhodium(II) perfluorocarboxamides promoting aromatic C-H insertion, and hence oxindole formation, over O-H insertion, cyclization onto adjacent triple bonds, or cyclization to generate 1,3-dipolar intermediates.
• Phototandem Catalysis: Efficient Synthesis of 3-Ester-3-hydroxy-2-oxindoles by a Visible Light-Induced Cyclization of Diazoamides through an Aerobic Oxidation Sequence
  作者：Xu-Dong Xia、Yan-Liang Ren、Jia-Rong Chen、Xing-Long Yu、Liang-Qiu Lu、You-Quan Zou、Jian Wan、Wen-Jing Xiao

  DOI：10.1002/asia.201402990

  日期：2015.1

  An unprecedented phototandem catalysis based on a single iridium photocatalyst has been successfully developed. This powerful strategy consists of two mechanistically distinct catalytic cycles, namely, photocatalytic energy transfer (ET) and single electron transfer (SET). The novel protocol allows a rapid and efficient construction of biologically and synthetically important 3‐ester‐3‐hydroxy‐2‐oxindole

  已经成功开发了基于单一铱光催化剂的前所未有的光串联催化。这种强大的策略包括两个机械上截然不同的催化循环，即光催化能量转移（ET）和单电子转移（SET）。新颖的方案允许在非常温和的条件下，通过环化/有氧氧化序列，从容易获得的重氮酰胺快速高效地构建生物学上和合成上重要的3-酯-3-羟基-2-吲哚衍生物。