methyl 2-propionyl-6-heptynoate | 877776-36-8

• 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: methyl 2-propionyl-6-heptynoate
• 英文别名: methyl 2-propanoylhept-6-ynoate
• CAS: 877776-36-8
• 化学式: C₁₁H₁₆O₃
• 分子量: 196.246
• InChiKey: KFJMLDXJDLDPIH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl 2-propionyl-6-heptynoate 在 lanthanum(III) isopropoxide 、 (S)-2-hydroxy-N-(1-(2-hydroxyphenylamino)-3,3-dimethyl-1-oxobutan-2-yl)benzamide 、 silver(I) acetate 、 三苯基膦 作用下， 以 乙酸乙酯 为溶剂， 反应 15.0h， 以86%的产率得到methyl 2-methylene-1-propionylcyclopentane-1-carboxylate
  参考文献：
  名称：

  La / Ag异双金属协同催化：催化不对称Conia-Ene反应

  摘要：

  双重催化剂体系：硬和软路易斯酸（分别为La III和Ag I）在包含酰胺基配体1的催化剂体系中的协同功能对于分子内1,3-二羰基和炔烃的同时活化至关重要提供对映体富集的环戊烷衍生物的部分（参见方案）。

  DOI：

  10.1002/anie.201102114
• 作为产物：
  描述：

  5-氯戊炔 、 3-氧代戊酸甲酯 在 sodium hydride 、 potassium iodide 作用下， 生成 methyl 2-propionyl-6-heptynoate
  参考文献：
  名称：

  硼酸催化炔属二羰基化合物的烯碳环化。

  摘要：

  描述了在3-硝基苯硼酸催化下，带有悬垂的末端炔基取代基的1，3-二羰基化合物的有效烯碳环化的发现和发展。该反应是有效的，易于进行的并且通常适用于多种酮酸酯底物。

  DOI：

  10.1039/b924899d

文献信息

• Mechanistic Investigations into the Enantioselective Conia-Ene Reaction Catalyzed by Cinchona-Derived Amino Urea Pre-Catalysts and Cu^I
  作者：Filippo Sladojevich、Ángel L. Fuentes de Arriba、Irene Ortín、Ting Yang、Alessandro Ferrali、Robert S. Paton、Darren J. Dixon

  DOI：10.1002/chem.201200832

  日期：2013.10.11

  Conia‐ene cyclization of alkyne‐tethered β‐ketoesters is efficiently catalyzed by the combination of cinchona‐derived amino‐urea pre‐catalysts and copper(I) salts. The reaction scope is broad and a series of substrates can be efficiently cyclized with high yields and enantioselectivities. Herein, we present a detailed mechanistic study based on experimental considerations and quantum mechanical calculations

  由金鸡纳衍生的氨基脲预催化剂和铜（I）盐的组合可有效催化炔烃系β-酮酸酯的对映选择性Conia-ene环化反应。反应范围广，并且可以高产率和对映选择性地有效地环化一系列底物。本文中，我们基于实验考虑因素和量子力学计算提出了详细的力学研究。已经彻底研究了一些变量，例如有机预催化剂的性质和金属离子源。动力学研究以及动力学同位素效应和氘标记实验已被用于进一步了解机理并证明催化系统的协同性质。我们的研究表明，该反应的限速步骤涉及β-酮酸酯的去质子化，而负责对映体确定步骤的活性物质在氨基脲预催化剂中是单体的。计算研究提供了对观察到的立体感应的定量理解，并确定了来自尿素基团的氢键是确定观察到的对映选择性的关键因素。
• Development of an enantioselective amine–silver co-catalyzed Conia-ene reaction
  作者：M. Blümel、D. Hack、L. Ronkartz、C. Vermeeren、D. Enders

  DOI：10.1039/c7cc01807j

  日期：——

  The development of a novel cooperative catalytic system for an amine–silver co-catalyzed Conia-ene reaction of alkyne-tethered C–H-acidic compounds is reported.

  报道了一种新型的合作催化系统，用于氨基-银共催化的炔基-锚定C-H酸性化合物的Conia-ene反应。
• Copper/Silver-Cocatalyzed Conia−Ene Reactions of 2-Alkynic 1,3-Dicarbonyl Compounds
  作者：Chen-Liang Deng、Tao Zou、Zhi-Qiang Wang、Ren-Jie Song、Jin-Heng Li

  DOI：10.1021/jo802133w

  日期：2009.1.2

  A copper/silver-catalyzed Conia−ene reaction has been developed for selectively constructing five-membered and six-membered rings. In the presence of (CuOTf)2·C6H6 and AgBF4, a variety of 2-alkynic 1,3-dicarbonyl compounds underwent the Conia−ene intramolecular reaction smoothly in moderate to good yields. It is noteworthy that both 2-phenylacetylhept-6-ynenitrile and diethyl 2-(pent-4-ynyl)malonate

  已经开发出铜/银催化的Conia-ene反应，用于选择性地构建五元环和六元环。在（CuOTf）2 ·C 6 H 6和AgBF 4的存在下，各种2-炔基1,3-二羰基化合物顺利进行了Conia-ene分子内反应，产率中等至良好。值得注意的是，在标准条件下，2-苯基乙酰庚基-6腈和2-（戊-4-炔基）丙二酸二乙酯也是合适的底物，对内-或外-产物的选择性取决于末端的取代基。炔烃。
• Brønsted Base/Lewis Acid Cooperative Catalysis in the Enantioselective Conia-Ene Reaction
  作者：Ting Yang、Alessandro Ferrali、Filippo Sladojevich、Leonie Campbell、Darren J. Dixon

  DOI：10.1021/ja9004859

  日期：2009.7.8

  A mutually compatible and cooperative combination of copper(I) triflate and bifunctional 9-amino-9-deoxyepicinchona-derived urea compounds for the enantioselective Conia-ene cyclization of alkyne-tethered beta-ketoester substrates is reported. The reaction is efficient, broad in scope, and easy to perform and allows access to chiral methylenecyclopentane products with high enantiocontrol. The transformation illustrates the concept of combining inactive precatatysts with inactive transition-metal-ion complexes in situ to reversibly create a catalytically active combination of the two.
• Synthesis and Structure of Hydroxyl Acids of General Structure 7,7-Alkenyl/alkynyl-5-hydroxymethyl-6-oxabicyclo[3.2.1]octane- 1-carboxylic Acid
  作者：Natalia Pérez-Hernández、Martín Febles、Cirilo Pérez、Ricardo Pérez、Matías L. Rodríguez、Concepción Foces-Foces、Julio D. Martín

  DOI：10.1021/jo052237p

  日期：2006.2.1

  [Graphics]The open-ended hollow tubular structure formed by inclusion of water molecules in the packing of the hydroxyl acid 1 (R-1 = CH2OH, R-2 = ethyl groups) led to the synthesis and structural study of their unsaturated analogues. In this article we report on a general and practical large-scale synthesis of hydroxyl acids that possess alkenyl and alkynyl appendages. Substitution of the ethyl groups in I with unsaturated two-carbon appendages has a different effect on the molecular structure and on the hydrogen-bonding pattern. No variation has been induced by Substitution of only one ethyl group with a vinyl one, although the substitution of both ethyl groups with vinyl or acetylene appendages has the greatest effect on the molecular structure and results in different hydrogen-bonding motifs.