methyl 1-azido-2-oxocyclopentane-1-carboxylate | 251095-03-1

• 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: methyl 1-azido-2-oxocyclopentane-1-carboxylate
• CAS: 251095-03-1
• 化学式: C₇H₉N₃O₃
• 分子量: 183.167
• InChiKey: YULJYKIUFNNGIX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  57.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 1-azido-2-oxocyclopentane-1-carboxylate 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 苯 为溶剂， 以70%的产率得到6-氧代-哌啶-2-羧酸甲酯
  参考文献：
  名称：

  Radical Chain Reactions of α-Azido-β-keto Esters with Tributyltin Hydride. A Novel Entry to Amides and Lactams through Regiospecific Nitrogen Insertion

  摘要：

  A variety of acyclic and carbocyclic alpha-azido-beta-keto esters have been readily prepared from the parent dicarbonyl compounds, and their radical chain reactions with tributyltin hydride have been investigated. These reactions normally result in efficient production of alkoxycarbonyl-substituted amides and lactams and thence provide a new, useful method for regiospecific nitrogen insertion of keto ester compounds. The likely mechanism entails initial addition of tributylstannyl radical to the azido moiety to give a stannylaminyl radical, which readily undergoes intramolecular three-membered cyclization onto the ketone group to form an alkoxyl radical. The alkoxyl radical then undergoes regiospecific beta-scissian to form a stable ring-opened radical that is eventually reduced by tributyltin hydride to propagate the chain. With certain substrates, concomitant deazidation occurs to an important extent. This process, which is unusually observed in radical reactions of alkyl azides, is ascribed to addition of the stannyl radical to the terminal azido nitrogen; subsequent fragmentation of the ensuing 1,3-triazenyl adduct gives stannyl azide and a deazidated alkyl radical, resonance-stabilized by the adjacent carbonyl groups. The radical reactions of 2-azido-2-(ethoxy-carbonyl)-1-tetralone with allyltributylstannane and allyltriphenylstannane have also been investigated with the (missed) aim to achieve nitrogen insertion and concomitant allylation.

  DOI：

  10.1021/jo990837g
• 作为产物：
  描述：

  2-甲氧羰基环戊酮 在 叠氮基三甲基硅烷 、 过氧化脲素 、 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine hydroiodide 作用下， 以 乙腈 为溶剂， 反应 0.75h， 以70%的产率得到methyl 1-azido-2-oxocyclopentane-1-carboxylate
  参考文献：
  名称：

  碘化胍/脲过氧化氢与三甲基硅烷基叠氮化物催化β-二羰基化合物的叠氮化

  摘要：

  我们提出了一种高效的合成方法，该方法由胍基次碘酸盐催化，由β-二羰基化合物和叠氮化三甲基硅烷基化物合成α-叠氮基-β-二羰基化合物。该反应可以在环境温度（最高40°C）的空气中进行，并且对水分不敏感。底物的适用范围很广，包括环状和线性的β-二羰基化合物，α-叠氮化物的产率为55％–99％。

  DOI：

  10.1016/j.tet.2016.07.015

文献信息

• Chemo‐ and Enantioselective Oxidative α‐Azidation of Carbonyl Compounds
  作者：Muhammet Uyanik、Naoto Sahara、Mayuko Tsukahara、Yuhei Hattori、Kazuaki Ishihara

  DOI：10.1002/anie.202007552

  日期：2020.9.21

  We report high‐performance I+/H2O2 catalysis for the oxidative or decarboxylative oxidative α‐azidation of carbonyl compounds by using sodium azide under biphasic neutral phase‐transfer conditions. To induce higher reactivity especially for the α‐azidation of 1,3‐dicarbonyl compounds, we designed a structurally compact isoindoline‐derived quaternary ammonium iodide catalyst bearing electron‐withdrawing

  我们报告了在双相中性相转移条件下使用叠氮化钠对羰基化合物进行氧化或脱羧氧化α-叠氮化的高性能I + / H 2 O 2催化。为了诱导更高的反应活性，尤其是对于1,3-二羰基化合物的α-叠氮化，我们设计了结构紧凑的异吲哚啉衍生的带有吸电子基团的季碘化铵催化剂。I + / H 2 O 2的非生产性分解途径催化量可以通过使用催化量的自由基捕获剂来抑制。这种氧化偶合耐受各种官能团，可以很容易地应用于结构多样的复杂分子的后期α-叠氮化。此外，我们实现了1,3-二羰基化合物的对映选择性α-叠氮化，这是手性次碘酸盐催化剂与对映选择性分子间氧化偶联的第一个成功实例。
• Azidation of β-Keto Esters and Silyl Enol Ethers with a Benziodoxole Reagent
  作者：Maria Victoria Vita、Jérôme Waser

  DOI：10.1021/ol401229v

  日期：2013.7.5

  The efficient azidation of β-keto esters and silyl enol ethers using a benziodoxole-derived azide transfer reagent is reported. The azidation of cyclic β-keto esters could be achieved in up to quantitative yields in the absence of any catalyst. In the case of less reactive linear β-keto esters and silyl enol ethers, complete conversion and good yields could be obtained by using a zinc catalyst.

  据报道，使用苯并恶二唑衍生的叠氮化物转移试剂可有效地叠氮化β-酮酯和甲硅烷基烯醇醚。在不存在任何催化剂的情况下，可以高达定量的产率实现环状β-酮酯的叠氮化。在反应性较低的线性β-酮酯和甲硅烷基烯醇醚的情况下，通过使用锌催化剂可以获得完全的转化和良好的产率。
• Guanidinium iodide/urea hydrogen peroxide-catalyzed azidation of β-dicarbonyl compounds with trimethylsilyl azide
  作者：Koji Yasui、Kohei Kojima、Takanari Kato、Minami Odagi、Masaru Kato、Kazuo Nagasawa

  DOI：10.1016/j.tet.2016.07.015

  日期：2016.9

  We present an efficient synthesis of α-azido-β-dicarbonyl compounds from β-dicarbonyl compounds and trimethylsilyl azide, catalyzed by guanidinium hypoiodite. The reaction can be run in air at ambient temperature (up to 40 °C) and is not sensitive to moisture. The substrate scope is broad, including cyclic and linear β-dicarbonyl compounds, and the α-azide products are obtained in 55%–99% yield.

  我们提出了一种高效的合成方法，该方法由胍基次碘酸盐催化，由β-二羰基化合物和叠氮化三甲基硅烷基化物合成α-叠氮基-β-二羰基化合物。该反应可以在环境温度（最高40°C）的空气中进行，并且对水分不敏感。底物的适用范围很广，包括环状和线性的β-二羰基化合物，α-叠氮化物的产率为55％–99％。
• Termination of Mn(III)-Based Oxidative Cyclizations by Trapping with Azide
  作者：Barry B. Snider、Jeremy R. Duvall

  DOI：10.1021/ol049805s

  日期：2004.4.1

  The radicals formed in Mn(III)-based oxidative free-radical cyclizations of beta-keto esters and malonate esters can be trapped with sodium azide and Mn(III) to give cyclic and bicyclic azides in 30-80% yield. Reduction of the azide gives bi- and tricyclic lactams. [reaction: see text]

  β-酮基酯和丙二酸酯的基于Mn（III）的氧化自由基环化反应中形成的自由基可以用叠氮化钠和Mn（III）捕集，以30-80％的收率得到环状和双环叠氮化物。叠氮化物的还原得到双环和三环内酰胺。[反应：看文字]
• Radical Chain Reactions of α-Azido-β-keto Esters with Tributyltin Hydride. A Novel Entry to Amides and Lactams through Regiospecific Nitrogen Insertion
  作者：Luisa Benati、Daniele Nanni、Corrado Sangiorgi、Piero Spagnolo

  DOI：10.1021/jo990837g

  日期：1999.10.1

  A variety of acyclic and carbocyclic alpha-azido-beta-keto esters have been readily prepared from the parent dicarbonyl compounds, and their radical chain reactions with tributyltin hydride have been investigated. These reactions normally result in efficient production of alkoxycarbonyl-substituted amides and lactams and thence provide a new, useful method for regiospecific nitrogen insertion of keto ester compounds. The likely mechanism entails initial addition of tributylstannyl radical to the azido moiety to give a stannylaminyl radical, which readily undergoes intramolecular three-membered cyclization onto the ketone group to form an alkoxyl radical. The alkoxyl radical then undergoes regiospecific beta-scissian to form a stable ring-opened radical that is eventually reduced by tributyltin hydride to propagate the chain. With certain substrates, concomitant deazidation occurs to an important extent. This process, which is unusually observed in radical reactions of alkyl azides, is ascribed to addition of the stannyl radical to the terminal azido nitrogen; subsequent fragmentation of the ensuing 1,3-triazenyl adduct gives stannyl azide and a deazidated alkyl radical, resonance-stabilized by the adjacent carbonyl groups. The radical reactions of 2-azido-2-(ethoxy-carbonyl)-1-tetralone with allyltributylstannane and allyltriphenylstannane have also been investigated with the (missed) aim to achieve nitrogen insertion and concomitant allylation.