6-甲基-2-氧代-4-噻吩-2-基-1,2,3,4-四氢-嘧啶-5-羧酸乙酯 | 5948-72-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 6-甲基-2-氧代-4-噻吩-2-基-1,2,3,4-四氢-嘧啶-5-羧酸乙酯
• 英文名称: ethyl 6-methyl-2-oxo-4-(2-thienyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate
• 英文别名: ethyl 6-methyl-2-oxo-4-(thiophen-2-yl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate；5-ethoxycarbonyl-6-methyl-4-(2-thienyl)-3,4-dihydropyrimidin-2(1H)-one；(±)-ethyl 6-methyl-2-oxo-4-(thiophen-2-yl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate；5-(ethoxycarbonyl)-4-(2-thienyl)-6-methyl-3,4-dihydropyrimidin-2-(1H)-one；5-ethoxycarbonyl-6-methyl-4-(2-thienyl)-3,4-dihydropyrimidine-2(1H)-one；ethyl 6-methyl-2-oxo-4-thiophen-2-yl-3,4-dihydro-1H-pyrimidine-5-carboxylate
• CAS: 5948-72-1
• 化学式: C₁₂H₁₄N₂O₃S
• 分子量: 266.321
• InChiKey: FOHKYBGQFPYEOE-UHFFFAOYSA-N

物化性质

• 溶解度：
  >39.9 [ug/mL]

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  95.7
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  6-甲基-2-氧代-4-噻吩-2-基-1,2,3,4-四氢-嘧啶-5-羧酸乙酯 在 溴 作用下， 以 氯仿 为溶剂， 生成 6-(溴甲基)-2-氧代-4-噻吩-2-基-1,2,3,4-四氢嘧啶-5-羧酸乙酯
  参考文献：
  名称：

  �ber Heterocyclen, 22. Mitt.: 3,4,6,7-Tetrahydro-5H-pyrrolo[3,4-d]pyrimidin-2(1H), 5-dione

  摘要：

  DOI：

  10.1007/bf00911420
• 作为产物：
  描述：

  6-甲基-2-氧代-1,2,3,4-四氢嘧啶-5-羧酸乙酯 在 正丁基锂 、 硝酸 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 生成 6-甲基-2-氧代-4-噻吩-2-基-1,2,3,4-四氢-嘧啶-5-羧酸乙酯
  参考文献：
  名称：

  A highly regio- and chemoselective addition of carbon nucleophiles to pyrimidinones. A new route to C4 elaborated Biginelli compounds

  摘要：

  Ethyl 6-methyl-pyrimidine-2-one-5-carboxylates react with C-nucleophiles in a diversity oriented synthetic sequence to afford C4 substituted congeners of medicinally potent Biginelli dihydropyrimidinones, in a highly regioselective manner. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2006.12.111

文献信息

• An Enantioselective Biginelli Reaction Catalyzed by a Simple Chiral Secondary Amine and Achiral Brønsted Acid by a Dual-Activation Route
  作者：Junguo Xin、Lu Chang、Zongrui Hou、Deju Shang、Xiaohua Liu、Xiaoming Feng

  DOI：10.1002/chem.200701581

  日期：2008.3.27

  An enantioselective Biginelli reaction that proceeds by a dual-activation route has been developed by using a combined catalyst of a readily available trans-4-hydroxyproline-derived secondary amine and a Bronsted acid. Aromatic, heteroaromatic, and fused-ring aldehydes were found to be suitable substrates for this multicomponent reaction. The corresponding dihydropyrimidines were obtained in moderate-to-good

  通过使用容易获得的反式4-羟基脯氨酸衍生的仲胺和布朗斯台德酸的组合催化剂，已经开发了通过双活化途径进行的对映选择性比吉内利反应。发现芳族，杂芳族和稠环醛是该多组分反应的合适底物。在温和条件下，以中等至良好的收率获得了相应的二氢嘧啶，收率高达98％ee。根据实验结果和观察到的产物的绝对构型，提出了一个合理的过渡态来解释激活和不对称诱导的起源。
• One Pot Synthesis of Micromolar BACE-1 Inhibitors Based on the Dihydropyrimidinone Scaffold and Their Thia and Imino Analogues
  作者：Jessica Bais、Fabio Benedetti、Federico Berti、Iole Cerminara、Sara Drioli、Maria Funicello、Giorgia Regini、Mattia Vidali、Fulvia Felluga

  DOI：10.3390/molecules25184152

  日期：——

  A library of dihydropyrimidinones was synthesized via a “one-pot” three component Biginelli reaction using different aldehydes in combination with β-dicarbonyl compounds and urea. Selected 2-thiooxo and 2-imino analogs were also obtained with the Biginelli reaction from thiourea and guanidine hydrochloride, respectively. The products were screened in vitro for their β-secretase inhibitory activity. The majority of the compounds resulted to be active, with IC50 in the range 100 nM–50 μM.

  通过使用不同的醛与β-二羰基化合物和尿素的“一锅法”三组分Biginelli反应合成了一系列二氢嘧啶酮类化合物。选择性地，也从硫脲和盐酸胍得到了2-硫氧代和2-亚氨基类似物。这些产物在体外被筛选，用于评估它们的β-分泌酶抑制活性。大多数化合物表现出活性，IC50在100 nM至50 μM范围内。
• Introduction of a novel dicationic Brönsted acidic ionic liquid based on pyrazine and its application in the synthesis of xanthenediones and 3, 4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
  作者：Seyyed Erfan Sadati Sorkhi、Mohammad M. Hashemi、Ali Ezabadi

  DOI：10.1007/s11164-020-04089-9

  日期：2020.4

  acidic ionic liquid based on pyrazine has been prepared and characterized by FTIR, 1H NMR, 13C NMR, MS, thermal gravimetric and differential thermal gravimetric analysis and also Hammett acidity function. The prepared dicationic ionic liquid is found to be an efficient and reusable catalyst for the synthesis of xanthenediones and 3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions. The merits

  制备了一种新型的吡嗪类布朗斯台德酸性离子液体，并通过FTIR，1 H NMR，13 C NMR，MS，热重分析和差示热重分析以及Hammett酸度函数进行了表征。发现所制备的阳离子型离子液体是在无溶剂条件下用于合成黄二酮和3,4-二氢嘧啶-2（1 H）-one的有效且可重复使用的催化剂。所开发方法的优点包括离子液体的新颖性，离子液体的易于制备，易于后处理，催化剂的可重复使用性，高收率，短的反应时间以及不存在有毒的有机溶剂。
• A One-Pot Synthesis of 3,4-Dihydropyrimidin-2-(1H)-ones from Primary Alcohols Promoted by Bi(NO3)3·5H2O in Two Different Media: Organic Solvent and Ionic Liquid
  作者：Ahmad Reza Khosropour、Ahmad R. Khosropour、Mohammd M. Khodaei、Mojtaba Beygzadeh、Mahbubeh Jokar

  DOI：10.3987/com-04-10257

  日期：——

  A new, simple and efficient procedure for the one-pot conversion of alcohols instead of aldehydes to the corresponding 3,4-dihydropyrimidin-2(1H)-ones (DHPMs) with Bi(NO 3 ) 3 .5H 2 O as a commercially available, inexpensive, stable and non-toxic reagent in two media, acetonitrile (as an organic solvent) and tetrabutylammonium bromide (as an ionic liquid) is described. This one-pot oxidation-cyclocondensation

  一种新的、简单且有效的方法，用于将醇而不是醛一锅转化为相应的 3,4-二氢嘧啶-2(1H)-酮 (DHPM)，其中 Bi(NO 3 ) 3 .5H 2 O 作为商业应用描述了在乙腈（作为有机溶剂）和四丁基溴化铵（作为离子液体）这两种介质中可获得、廉价、稳定和无毒的试剂。这种一锅氧化-环缩合反应无需分离任何中间体（醛）即可进行，从而缩短了时间，节省了能源和原材料。另一方面，用这种新的一锅法处理伯醇产生的脱氢嘧啶酮的产率高于传统方法中的产率。
• A facile approach for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones using a microwave promoted Biginelli protocol in ionic liquid
  作者：ABHISHEK N DADHANIA、VAIBHAV K PATEL、DIPAK K RAVAL

  DOI：10.1007/s12039-012-0278-5

  日期：2012.7

  recycled and reused in at least six subsequent reactions with consistent activity. Carboxy functionalized ionic liquid [cmmim][BF4] is shown to be an efficient and green catalyst for the one pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones heterocycles under microwave irradiation. This methodology represents an easy access to Biginelli compounds with high yields and purity. The ionic liquid was recycled

  羧基官能化的离子液体[cmmim] [BF 4 ]已被证明是在微波辐射下一锅合成3,4-二氢嘧啶-2-（1 H）-一个杂环的高效绿色催化剂。离子液体微波策略可以轻松获得具有高收率和纯度的Biginelli化合物。发现该方案与不同结构上不同的醛相容。离子液体被循环使用，并在至少六个随后的具有一致活性的反应中重新使用。 羧基官能化的离子液体[cmmim] [BF 4 ]被证明是在微波辐射下一锅合成3,4-二氢嘧啶-2-（1 H）-ones杂环的高效绿色催化剂。这种方法论代表了容易获得高收率和高纯度的比吉内利化合物的方法。离子液体被回收利用，结果一致。