2-propynyl 2-diazo-3-oxobutanoate | 132353-07-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: 2-propynyl 2-diazo-3-oxobutanoate
• 英文别名: prop-2-yn-1-yl 2-diazo-3-oxobutanoate；Prop-2-ynyl 2-diazo-3-oxobutanoate；prop-2-ynyl 2-diazo-3-oxobutanoate
• CAS: 132353-07-2
• 化学式: C₇H₆N₂O₃
• 分子量: 166.136
• InChiKey: ALLZIGFEYDAQKE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  45.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-propynyl 2-diazo-3-oxobutanoate 在 四氢吡咯 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 生成 2-propynyl 2-diazo-3-oxo-3-phenylpropionate
  参考文献：
  名称：

  Rhodium(II)-catalyzed cyclization of 2-alkynyl 2-diazo-3-oxobutanoates as a method for synthesizing substituted furans

  摘要：

  A series of 2-alkynyl 2-diazo-3-oxobutanoates, when treated with a catalytic quantity of rhodium(II) acetate, were found to produce furo[3,4-c]furans in good yield. The reaction proceeds by addition of a rhodium-stabilized carbenoid onto the acetylenic pi-bond to give a vinyl carbenoid which subsequently cyclizes onto the neighboring carbonyl group to produce the furan ring. In a similar manner, indeno[1,2-c]furans were produced from 2-butynyl 2-diazoarylacetates. Compounds substituted with methyl groups on the propargylic carbon atom cyclized at a slower rate. This rate diminution is attributed to the fact that the unsubstituted propargyl group can more easily achieve the required conformation for cyclization. C-H insertion was found to compete with furan formation when an alkyl group was attached to the keto functionality of the starting diazo acetoacetate. Diazo alkynyl sulfones undergo a novel oxygen transfer reaction when treated with rhodium(II) acetate at 80-degrees-C. The cyclized product is formed by sulfone oxygen attack onto the vinyl carbenoid producing a dipolar species which subsequently collapses to give the butenolide sulfoxide.

  DOI：

  10.1021/jo00053a009
• 作为产物：
  描述：

  propargyl acetoacetate 在 4-乙酰氨基苯磺酰叠氮 、 三乙胺 作用下， 以 乙腈 为溶剂， 反应 2.0h， 生成 2-propynyl 2-diazo-3-oxobutanoate
  参考文献：
  名称：

  可见光驱动自由基 1,3- 硒代磺酸盐与乙烯基重氮化合物的加成

  摘要：

  在此，我们报告了一种可见光驱动的自由基 1,3- 硒磺酰化乙烯基重氮化合物与硒磺酸盐，以良好的产率提供各种 γ-硒烯丙基砜。该光化学反应在室温下在开口烧瓶中进行，使用乙酸乙酯作为溶剂，没有任何光催化剂或添加剂。对照实验证实 1,3-加成是通过自由基链增长过程进行的。通过脱硒、还原、溴化和烯丙基化证明了所得产品的合成应用。

  DOI：

  10.1039/d1gc02036f

文献信息

• Amino-modified Merrifield resins as recyclable catalysts for the safe and sustainable preparation of functionalized α-diazo carbonyl compounds
  作者：Mariane Fantinel、Nayara Valiati、Pedro A.M. Moro、Marcus M. Sá

  DOI：10.1016/j.tet.2021.132081

  日期：2021.4

  catalytic activity. This straightforward procedure can be readily scaled up to gram scale, enabling the wide application of this method. The synthetic potential was demonstrated through the two-step preparation of 2-amino-N-dodecylacetamide (ANDA), a small molecule of commercial relevance.

  制备并表征了衍生自Merrifield树脂的氨基官能化聚苯乙烯聚合物。这些基础材料已成功地用作重氮转化为1,3-二羰基化合物的非均相催化剂，从而以相对较高的收率和较短的反应时间提供了相应的重氮化合物。另外，后处理和纯化方案简单且不会产生大量废物，这是可持续催化和环境友好过程中的重要特征。还证实了氨基改性催化剂的回收和再利用的可行性，因为它们可以使用多达五次而不会明显丧失催化活性。这个简单的过程可以很容易地放大到克级，从而使该方法得以广泛应用。
• A serendipitous cascade of rhodium vinylcarbenoids with aminochalcones for the synthesis of functionalized quinolines
  作者：Kiran Chinthapally、Nicholas P. Massaro、Haylee L. Padgett、Indrajeet Sharma

  DOI：10.1039/c7cc07181g

  日期：——

  A serendipitous five-step cascade of rhodium vinylcarbenoids with aminochalcones enables a unique synthetic approach to highly functionalized tri- and tetra-cyclic quinolines. The cascade reaction begins with the insertion of aminochalcone nitrogen into rhodium vinylcarbenoids followed by intramolecular aldol cyclization to provide a substituted indoline intermediate that undergoes an oxy-Cope rearrangement

  铑乙烯基类胡萝卜素与氨基查耳酮的偶然五步级联使得独特的合成方法可用于高度官能化的三环和四环喹啉。级联反应开始于将氨基查耳酮氮插入乙烯基乙烯基类化合物铑中，然后进行分子内羟醛环化，以提供取代的二氢吲哚中间体，该中间体进行oxy-Cope重排以提供9元氮杂环，然后再通过分子内羟醛重排至官能化的喹啉/脱水顺序。在低至0.1 mol％的催化剂负载量下，级联反应已被证明适用于一系列氨基查耳酮和乙烯基类胡萝卜素。
• Preparation of oxygenated heterocycles via the cyclization reaction of α-diazo substituted alkynes
  作者：Frederick R. Kinder、Albert Padwa

  DOI：10.1016/s0040-4039(00)97184-3

  日期：1990.1
• KINDER, FREDERICK R.;PADWA, ALBERT, TETRAHEDRON LETT., 31,(1990) N7, C. 6835-6838
  作者：KINDER, FREDERICK R.、PADWA, ALBERT

  DOI：——

  日期：——