ethyl 2,4-dimethyl-5-phenylfuran-3-carboxylate | 108124-06-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 呋喃
• 英文名称: ethyl 2,4-dimethyl-5-phenylfuran-3-carboxylate
• CAS: 108124-06-7
• 化学式: C₁₅H₁₆O₃
• 分子量: 244.29
• InChiKey: IEZHEDANUWFFBB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  39.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-乙酰基-3-甲基-4-氧代-4-苯基丁酸乙酯 在 1-甲基-3-丁基咪唑硫酸氢盐 作用下， 反应 3.0h， 以100%的产率得到ethyl 2,4-dimethyl-5-phenylfuran-3-carboxylate
  参考文献：
  名称：

  离子液体作为催化剂和反应介质：一种简单有效的 Paal-Knorr 呋喃合成方法

  摘要：

  离子液体 1-丁基-3-甲基-咪唑硫酸氢盐 [bmim]HSO4 无需任何有机溶剂即可有效催化 Paal-Knorr 呋喃合成。广泛的脂肪族和芳香族 1,4-二酮很容易缩合形成呋喃衍生物，提供了一个通用和方便的程序。首次报道了酯取代的 1,4-二酮的 Paal-Knorr 反应。离子液体可以回收并重新用于后续运行，而不会显着降低效率。

  DOI：

  10.1080/00397910902978049

文献信息

• One-Pot Synthesis of Furans Using Base- and Acid-Supported Reagents ‘Na2CO3/Al2O3-PPA/SiO2'
  作者：Tadashi Aoyama、Takashi Nagaoka、Toshio Takido、Mitsuo Kodomari

  DOI：10.1055/s-0030-1258402

  日期：2011.2

  convenient method for the one-pot synthesis of furans from β-keto esters and α-halo ketones was developed using an acid- and base-supported reagent system ‘Na2CO3/Al2O3-PPA/SiO2’. The condensation reaction of triketones, which are formed from the reaction of β-keto esters with α-halo ketones in the presence of Na2CO3/Al2O3, was promoted by PPA/SiO2 to give the corresponding furans in good yields. This method

  开发了一种方便的方法，可使用酸和碱支持的试剂系统'Na 2 CO 3 / Al 2 O 3 -PPA / SiO 2 '从β-酮酯和α-卤代酮一锅合成呋喃。PPA / SiO 2促进了β-酮酸酯与α-卤代酮在Na 2 CO 3 / Al 2 O 3存在下的反应而形成的三酮缩合反应，得到了相应的呋喃。产量。与分步法相比，该方法简单易行，收率好。 呋喃-一锅合成-支持的试剂
• Silver-Mediated Oxidative C–H/C–H Functionalization: A Strategy To Construct Polysubstituted Furans
  作者：Chuan He、Sheng Guo、Jie Ke、Jing Hao、Huan Xu、Hongyi Chen、Aiwen Lei

  DOI：10.1021/ja301153k

  日期：2012.4.4

  A novel silver-mediated highly selective oxidative C-H/C-H functionalization of 1,3-dicarbonyl compounds with terminal alkynes for the creation of polysubstituted furans and pyrroles in one step has been demonstrated. Promoted by the crucial silver species, perfect selectivity and good to excellent yields could be achieved. This protocol represents an extremely simple and atom-economic way to construct polysubstituted furans and pyrroles from basic starting materials under mild conditions.
• Palladium-Catalyzed Double Alkylation of 3-Aryl-2-fluoroallyl Esters with Malonate Nucleophiles through the Carbon–Fluorine Bond Cleavage
  作者：Mitsuaki Yamamoto、Shunsuke Hayashi、Kazuki Isa、Motoi Kawatsura

  DOI：10.1021/ol500121z

  日期：2014.2.7

  The alkylation of (Z)-3-aryl-2-fluoroallyl acetate with the malonate anion by the [Pd(C3H5)(cod)]BF4/2,2'-bpy catalyst proceeds through the carbon fluorine bond cleavage, and 2 equiv of the malonate nucleophile was introduced to the allyl substrate.
• Ionic Liquid as Catalyst and Reaction Medium: A Simple and Efficient Procedure for Paal–Knorr Furan Synthesis
  作者：Gangqiang Wang、Zhi Guan、Rongchang Tang、Yanhong He

  DOI：10.1080/00397910902978049

  日期：2010.1.14

  The ionic liquid 1-butyl-3-methyl-imidazolium hydrogen sulfate, [bmim]HSO4, efficiently catalyzes Paal–Knorr furan synthesis without any organic solvent. A wide range of aliphatic and aromatic 1,4-diketones easily undergo condensations to form furan derivatives, providing a general and convenient procedure. The Paal–Knorr reaction of ester-substituted 1,4-diketones is first reported. The ionic liquid

  离子液体 1-丁基-3-甲基-咪唑硫酸氢盐 [bmim]HSO4 无需任何有机溶剂即可有效催化 Paal-Knorr 呋喃合成。广泛的脂肪族和芳香族 1,4-二酮很容易缩合形成呋喃衍生物，提供了一个通用和方便的程序。首次报道了酯取代的 1,4-二酮的 Paal-Knorr 反应。离子液体可以回收并重新用于后续运行，而不会显着降低效率。