dimethyl 2-(2-oxocyclohexyl)malonate | 63965-89-9

• 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: dimethyl 2-(2-oxocyclohexyl)malonate
• 英文别名: dimethyl 2-(2-oxocyclohexyl)propanedioate
• CAS: 63965-89-9
• 化学式: C₁₁H₁₆O₅
• 分子量: 228.245
• InChiKey: MRMJANFFIPGZSN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.73
• 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 2-(2-oxocyclohexyl)malonate 在 氢氧化钾 作用下， 以 甲醇 为溶剂， 生成 2-(2-氧代环己基)乙酸
  参考文献：
  名称：

  Electrochemical oxidation of enamines in the presence of organic anions

  摘要：

  DOI：

  10.1021/jo01334a016
• 作为产物：
  描述：

  1-吗啉基-1-环己烯 在 盐酸 、 sodium methylate 作用下， 以 氯仿 为溶剂， 生成 dimethyl 2-(2-oxocyclohexyl)malonate
  参考文献：
  名称：

  Electrochemical oxidation of enamines in the presence of organic anions

  摘要：

  DOI：

  10.1021/jo01334a016

文献信息

• Synthesis of 1,4-Dicarbonyl Compounds from Silyl Enol Ethers and Bromocarbonyls, Catalyzed by an Organic Dye under Visible-Light Irradiation with Perfect Selectivity for the Halide Moiety over the Carbonyl Group
  作者：Naoto Esumi、Kensuke Suzuki、Yoshihiro Nishimoto、Makoto Yasuda

  DOI：10.1021/acs.orglett.6b02869

  日期：2016.11.4

  We report the visible-light-induced radical coupling reaction of silyl enol ethers with α-bromocarbonyl compounds to give 1,4-dicarbonyls. The reaction was effectively accelerated using an inexpensive organic dye (eosin Y) as a photoredox catalyst. 1,4-Dicarbonyl compounds alone were afforded, without the generation of carbonyl adducts of the α-halocarbonyls, which are usually generated in the presence

  我们报道了可见光诱导的甲硅烷基烯醇醚与α-溴羰基化合物的自由基偶联反应，得到1,4-二羰基。使用廉价的有机染料（曙红Y）作为光氧化还原催化剂可有效地促进反应。仅提供1，4-二羰基化合物，而没有生成α-卤代羰基的羰基加合物，α-卤代羰基的羰基加合物通常是在氟阴离子或路易斯酸的存在下生成的。将多种甲硅烷基烯醇醚，α-溴代酮，α-溴代酸酯和α-溴代酰胺应用于该系统以产生偶联化合物。
• Electrophilic Activation of Iodonium Ylides by Halogen-Bond-Donor Catalysis for Cross-Enolate Coupling
  作者：Masato Saito、Yusuke Kobayashi、Seiji Tsuzuki、Yoshiji Takemoto

  DOI：10.1002/anie.201703641

  日期：2017.6.19

  The umpolung alkylation of silyl enol ethers with an iodonium(III) ylide proceeds under mild conditions to afford various 1,4-dicarbonyl compounds in high yields in the presence of a halogen-bonding catalyst. Unlike typical transition-metal activation processes of such ylide precursors, which tend to proceed via carbenoid intermediates, experimental and computational studies indicate that halogen bonding

  甲硅烷基烯醇醚与碘鎓（III）内鎓盐的烷基酚烷基化在温和的条件下进行，从而在卤素键合催化剂的存在下以高收率得到各种1,4-二羰基化合物。与此类内酰胺前体的典型过渡金属活化过程（通常通过类胡萝卜素中间体进行）不同，实验和计算研究表明XB供体催化剂和碘鎓内鎓盐之间的卤素键（XB）在促进反应中起关键作用。相容的布朗斯台德碱催化剂的鉴定使得该方法能够扩展到就地生成的烯醇，从而以高收率得到相应的加合物。
• Rapid assembly of complex cyclopentanes employing chiral, α,β-unsaturated acylammonium intermediates
  作者：Gang Liu、Morgan E. Shirley、Khoi N. Van、Rae Lynn McFarlin、Daniel Romo

  DOI：10.1038/nchem.1788

  日期：2013.12

  With the intention of improving synthetic efficiency, organic chemists have turned to bioinspired organocascade or domino processes that generate multiple bonds and stereocentres in a single operation. However, despite the great importance of substituted cyclopentanes, given their prevalence in complex natural products and pharmaceutical agents, the rapid, enantioselective assembly of these carbocycles lags behind cyclohexanes. Here, we describe a Michael–aldol-β-lactonization organocascade process for the synthesis of complex cyclopentanes utilizing chiral α,β-unsaturated acylammonium intermediates, readily generated by activation of commodity unsaturated acid chlorides with chiral isothiourea catalysts. This efficient methodology enables the construction of two C–C bonds, one C–O bond, two rings and up to three contiguous stereogenic centres delivering complex cyclopentanes with high levels of relative and absolute stereocontrol. Our results suggest that α,β-unsaturated acylammonium intermediates have broad utility for the design of organocascade and multicomponent processes, with the latter demonstrated by a Michael–Michael–aldol-β-lactonization. Despite their appearance in a number of bioactive natural products, the synthesis of 5-membered carbocycles has received much less attention than synthesis of their 6-membered counterparts. Here, a Michael-aldol-β-lactonization cascade is used to forge two C-C bonds, one C-O bond, two rings and up to three contiguous stereocentres and deliver complex cyclopentanes with high levels of relative and absolute stereocontrol.

  为了提高合成效率，有机化学家转而采用生物启发的有机级联或多米诺过程，在一次操作中生成多个键和立体中心。然而，尽管取代的环戊烷在复杂的天然产品和药物制剂中非常普遍，具有重要意义，但这些碳环的快速对映选择性组装却落后于环己烷。在这里，我们介绍了利用手性δ,δ²-不饱和酰基铵中间体合成复杂环戊烷的迈克尔-醛-δ-内酯化有机级联工艺，这种中间体可通过手性异硫脲催化剂活化商品不饱和酸氯化物而生成。这种高效的方法可以构建两个 CâC 键、一个 CâO 键、两个环和多达三个连续的立体中心，从而提供具有高度相对和绝对立体控制能力的复杂环戊烷。我们的研究结果表明，δ,δ-不饱和酰基铵中间体在设计有机级联和多组分过程中具有广泛的用途，后者通过迈克尔-迈克尔醛-δ-内酯化过程得到了证明。尽管五元碳环出现在许多具有生物活性的天然产物中，但其合成所受到的关注却远远低于六元碳环的合成。在这里，我们利用迈克尔-醛-δ-内酯化级联法生成了两个 C-C 键、一个 C-O 键、两个环和多达三个连续的立体中心，并提供了具有高水平相对和绝对立体控制的复杂环戊烷。
• Synthetic Utility of Stannyl Enolates as Radical Alkylating Agents¹
  作者：Katsukiyo Miura、Naoki Fujisawa、Hiroshi Saito、Di Wang、Akira Hosomi

  DOI：10.1021/ol016268s

  日期：2001.8.9

  [GRAPHICS]The radical-initiated beta -ketoalkylation of haloalkanes with tributylstannyl enolates is described. Stannyl enolates derived from aromatic ketones are reactive toward the homolytic beta -ketoalkylation of simple haloalkanes as well as those activated by an electron-withdrawing group. The reactivity of stannyl enolates as radical alkylating agents can be utilized for an efficient three-component coupling reaction among stannyl enolates, haloalkanes, and electron-deficient alkenes.
• Enol thioethers as enol substitutes. An alkylation sequence
  作者：Barry M. Trost、Alvin C. Lavoie

  DOI：10.1021/ja00353a037

  日期：1983.7