dimethyl 5-oxocyclohex-3-ene-1,1-dicarboxylate | 1133965-54-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: dimethyl 5-oxocyclohex-3-ene-1,1-dicarboxylate
• CAS: 1133965-54-4
• 化学式: C₁₀H₁₂O₅
• 分子量: 212.202
• InChiKey: NXMCPHMTVWTIGF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  69.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  dimethyl 5-oxocyclohex-3-ene-1,1-dicarboxylate 在 Cp*Rh(2-(2-pyridyl)phenyl)H 、 氢气 作用下， 以 甲醇 为溶剂， 20.0 ℃ 、551.59 kPa 条件下， 反应 24.0h， 以96%的产率得到dimethyl 3-oxocyclohexane-1,1-dicarboxylate
  参考文献：
  名称：

  氢化铑催化C=C键的高选择性加氢

  摘要：

  在温和条件下（室温，80 psi H 2）Cp*Rh(2-(2-吡啶基)苯基)H催化α,β-不饱和羰基化合物（包括天然产物前体）中C=C键的选择性氢化在 β 位具有庞大的取代基，并且底物具有一系列额外的官能团。它还催化许多分离的双键的氢化。机理研究表明，不涉及自由基中间体，并且催化剂似乎是均相的，从而为类似氢化过程的现有方案提供了重要的互补性。

  DOI：

  10.1021/jacs.1c04683
• 作为产物：
  描述：

  dimethyl 2-(2-oxoethyl)-2-(prop-2-yn-1-yl)malonate 在 三氟乙酸 作用下， 反应 1.0h， 以90%的产率得到dimethyl 5-oxocyclohex-3-ene-1,1-dicarboxylate
  参考文献：
  名称：

  Brønsted Acid-Promoted Intramolecular Carbocyclization of Alkynals Leading to Cyclic Enones

  摘要：

  TFA-promoted exo carbocyclizations of nonterminal 7-alkynals gave good to excellent yields of seven-membered cycloalkenones, a medium-sized functionalized ring present in natural products with relevant pharmacological properties. Nonterminal 5- and 6-alkynals also gave very good yields of the corresponding exo cyclopentenones and cyclohexenones. On the other hand, terminal 5-alkynals gave endo carbocyclizations to cyclohexenones. These carbocyclizations can be considered as tandem alkyne hydration/aldol condensation processes.

  DOI：

  10.1021/ol900142r

文献信息

• Hydroalkylation of Alkynyl Ethers via a Gold(I)-Catalyzed 1,5-Hydride Shift/Cyclization Sequence
  作者：Igor Dias Jurberg、Yann Odabachian、Fabien Gagosz

  DOI：10.1021/ja9100134

  日期：2010.3.17

  A series of alkynyl ethers react with an electrophilic gold(I) catalyst to produce a range of structurally complex spiro or fused dihydrofurans and dihydropyrans via a 1,5-hydride shift/cyclization sequence. This hydroalkylation process, which is performed under practical experimental conditions, can be applied to terminal as well as ester-substituted alkynes. It allows the efficient conversion of

  一系列炔基醚与亲电子金 (I) 催化剂反应，通过 1,5-氢化物转移/环化序列产生一系列结构复杂的螺或稠合二氢呋喃和二氢吡喃。这种在实际实验条件下进行的加氢烷基化过程可应用于末端和酯取代的炔烃。它允许通过将乙烯基金物质亲核加成到氧鎓中间体上，将二级或三级 sp(3) CH 键有效转化为新的 CC 键。形成新的五元或六元环的环异构化过程的立体选择性似乎取决于空间因素和炔烃取代模式。
• Efficient Generation and Increased Reactivity in Cationic Gold via Brønsted Acid or Lewis Acid Assisted Activation of an Imidogold Precatalyst
  作者：Junbin Han、Naoto Shimizu、Zhichao Lu、Hideki Amii、Gerald B. Hammond、Bo Xu

  DOI：10.1021/ol501443m

  日期：2014.7.3

  Brønsted or Lewis acid assisted activation of an imidogold precatalyst (L-Au-Pht, Pht = phthalimide) offers a superior way to generate cationic gold compared with the commonly used silver-based system. It is also broadly applicable for most common gold-catalyzed reactions. For reactions that require milder conditions, milder acids can be used for optimized efficiency.

  与常用的银基系统相比，布朗斯台德或路易斯酸辅助活化亚胺金预催化剂（L-Au-Pht，Pht = 邻苯二甲酰亚胺）提供了一种生成阳离子金的优越方法。它也广泛适用于最常见的金催化反应。对于需要温和条件的反应，可以使用温和的酸来优化效率。
• Highly Selective Hydrogenation of C═C Bonds Catalyzed by a Rhodium Hydride
  作者：Yiting Gu、Jack R. Norton、Farbod Salahi、Vladislav G. Lisnyak、Zhiyao Zhou、Scott A. Snyder

  DOI：10.1021/jacs.1c04683

  日期：2021.6.30

  Under mild conditions (room temperature, 80 psi of H2) Cp*Rh(2-(2-pyridyl)phenyl)H catalyzes the selective hydrogenation of the C═C bond in α,β-unsaturated carbonyl compounds, including natural product precursors with bulky substituents in the β position and substrates possessing an array of additional functional groups. It also catalyzes the hydrogenation of many isolated double bonds. Mechanistic

  在温和条件下（室温，80 psi H 2）Cp*Rh(2-(2-吡啶基)苯基)H催化α,β-不饱和羰基化合物（包括天然产物前体）中C=C键的选择性氢化在 β 位具有庞大的取代基，并且底物具有一系列额外的官能团。它还催化许多分离的双键的氢化。机理研究表明，不涉及自由基中间体，并且催化剂似乎是均相的，从而为类似氢化过程的现有方案提供了重要的互补性。
• Brønsted Acid-Promoted Intramolecular Carbocyclization of Alkynals Leading to Cyclic Enones
  作者：Carlos González-Rodríguez、Luz Escalante、Jesús A. Varela、Luis Castedo、Carlos Saá

  DOI：10.1021/ol900142r

  日期：2009.4.2

  TFA-promoted exo carbocyclizations of nonterminal 7-alkynals gave good to excellent yields of seven-membered cycloalkenones, a medium-sized functionalized ring present in natural products with relevant pharmacological properties. Nonterminal 5- and 6-alkynals also gave very good yields of the corresponding exo cyclopentenones and cyclohexenones. On the other hand, terminal 5-alkynals gave endo carbocyclizations to cyclohexenones. These carbocyclizations can be considered as tandem alkyne hydration/aldol condensation processes.