ethyl 2-methyl-5-(thiophen-2-yl)furan-3-carboxylate | 1367708-13-1

• 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-methyl-5-(thiophen-2-yl)furan-3-carboxylate
• 英文别名: Ethyl 2-methyl-5-(thiophen-2-yl)furan-3-carboxylate；ethyl 2-methyl-5-thiophen-2-ylfuran-3-carboxylate
• CAS: 1367708-13-1
• 化学式: C₁₂H₁₂O₃S
• 分子量: 236.291
• InChiKey: XJUDSGWMKDVYNY-UHFFFAOYSA-N

物化性质

• 沸点：
  326.8±42.0 °C(Predicted)
• 密度：
  1.195±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  67.7
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  N-(1-(thiophen-2-yl)vinyl)acetamide 在 manganese(III) triacetate dihydrate 、 对甲苯磺酸 作用下， 以 甲苯 、 乙腈 为溶剂， 反应 8.0h， 生成 ethyl 2-methyl-5-(thiophen-2-yl)furan-3-carboxylate
  参考文献：
  名称：

  Direct Oxidative Coupling of Enamides and 1,3-Dicarbonyl Compounds: A Facile and Versatile Approach to Dihydrofurans, Furans, Pyrroles, and Dicarbonyl Enamides

  摘要：

  An efficient manganese(III)-mediated oxidative coupling reaction between a-aryl enamides and 1,3-dicarbonyl compounds has been developed. A series of dihydrofurans and dicarbonyl enamides were synthesized in moderate to good yields. Moreover, these dihydrofurans could be readily transformed into the corresponding furans and pyrroles via the Paal-Knorr reaction.

  DOI：

  10.1021/ol503009f

文献信息

• Cu(I)-catalyzed reaction of diazo compounds with terminal alkynes: a direct synthesis of trisubstituted furans
  作者：Mohammad Lokman Hossain、Fei Ye、Yan Zhang、Jianbo Wang

  DOI：10.1016/j.tet.2014.07.086

  日期：2014.9

  method for the synthesis of tri-substituted furans has been developed based on Cu(I)-catalyzed reaction of terminal alkynes with β-keto α-diazoesters. This method for the synthesis of 2,3,5-trisubstituted furans is operationally simple and applicable to wide substrate scope. Moreover, this synthesis employs cheap Cu(MeCN)4PF6 as the catalyst and no additional ligand is needed. Similar reaction has also been

  基于Cu（I）催化的末端炔烃与β-酮α-重氮酸酯的反应，已经开发了一种三取代呋喃的合成方法。该合成2,3,5-三取代呋喃的方法操作简单，适用于广泛的底物范围。此外，该合成采用廉价的Cu（MeCN）4 PF 6作为催化剂，不需要其他配体。类似的反应也已用于（E）-2-重氮-3-（甲氧基亚氨基）丁酸乙酯，用于合成2,3,5-三取代的N-甲氧基吡咯，但效果有限。
• Copper-Catalyzed Coupling of 2-Siloxy-1-alkenes and Diazocarbonyl Compounds: Approach to Multisubstituted Furans, Pyrroles, and Thiophenes
  作者：Wei Wen Tan、Naohiko Yoshikai

  DOI：10.1021/acs.joc.6b00904

  日期：2016.7.1

  We report herein copper(II)-catalyzed cyclization reactions of silyl enol ethers derived from methyl ketones with α-diazo-β-ketoesters or α-diazoketones to afford 2-siloxy-2,3-dihydrofuran derivatives or 2,3,5-trisubstituted furans, respectively, under mild conditions. The former cyclization products serve as versatile 1,4-diketone surrogates, allowing facile preparation of 2,3,5-trisubstituted furans

  我们在本文中报道了铜（II）催化的甲基酮衍生的甲硅烷基烯醇醚与α-重氮-β-酮酸酯或α-二氮酮的环化反应，从而提供2-siloxy-2,3-dihydrofuran衍生物或2,3,5-三取代的呋喃，分别在温和的条件下。以前的环化产品可以用作通用的1,4-二酮替代物，从而可以轻松制备2,3,5-三取代的呋喃，吡咯和噻吩。
• 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.