ethyl (S)-4-(4-fluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate | 854019-24-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: ethyl (S)-4-(4-fluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
• 英文别名: (S)-(+)-5-ethoxycarbonyl-6-methyl-4-(4-fluorophenyl)-3,4-dihydropyrimidin-2(1H)-one；(S)-5-ethoxycarbonyl-4-(4-fluorophenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one；ethyl (4S)-4-(4-fluorophenyl)-6-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate
• CAS: 854019-24-2
• 化学式: C₁₄H₁₅FN₂O₃
• mdl: MFCD00500223
• 分子量: 278.283
• InChiKey: QGHWHUHDQUDRRI-LBPRGKRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  67.4
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  [(4-Fluorophenyl)-(4-methylphenyl)sulfonylmethyl]urea 、 乙酰乙酸乙酯 在 (S,S)-1,2-bis(2-hydroxybenzylamino)cyclohexane 、 N,N-二异丙基乙胺 、 盐酸 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 20.0h， 以94%的产率得到ethyl (S)-4-(4-fluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
  参考文献：
  名称：

  迈向类酶的可持续催化：对映纯比吉内利二氢嘧啶酮或六氢嘧啶酮的可转换，高效不对称合成

  摘要：

  具有协同氢键网络（NCHB）的有机催化剂已以类似酶的方式用于直接，可转换的对映纯六氢嘧啶酮（HHPM）或二氢嘧啶酮（DHPM）的合成，其起始于常见的易于获得的α-脲基砜阶段。NCHB有机催化剂即使在存在有机碱的情况下，也可以发挥其作为纯氢键仿生催化剂的全部潜力。这种单锅，非对映和对映选择性合成方法已被证明是可靠，可扩展，高效且对环境无害的。首次报道了一种直接，真正实用的对映纯HHPMs。

  DOI：

  10.1002/chem.201604433

文献信息

• Solution-phase synthesis and evaluation of tetraproline chiral stationary phases
  作者：Zhi Dai、Guozhong Ye、Charles U. Pittman、Tingyu Li

  DOI：10.1002/chir.22001

  日期：2012.4

  solution‐phase synthesis of multigram amounts of two 9‐fluorenylmethoxycarbonyl (Fmoc)‐protected tetraproline peptides. These tetraproline peptides were then attached to amino derivatized silica gel. The replacement of the Fmoc group with the trimethylacetyl group lead to two tetraproline chiral stationary phases (CSPs). A comparison of the chromatographic behavior of these two solution‐phase‐synthesized

  开发了一种协议方案，用于溶液相合成多克数量的两个9-芴基甲氧基羰基（Fmoc）保护的四脯氨酸肽。然后将这些四脯氨酸肽连接到氨基衍生的硅胶上。用三甲基乙酰基取代Fmoc基团会导致两个四脯氨酸手性固定相（CSP）。将这两种溶液相合成的四脯氨酸CSP与通过逐步固相合成制备的CSP的色谱行为进行比较，结果表明，这三种溶液均具有相似的色谱性能，可分离53种模型分析物。这表明寡聚脯氨酸的溶液相合成具有良好的批次重现性，选择器均质性以及可能的低成本等特定优势，是寡聚脯氨酸CSP固相合成的可行替代方法。手性，2012年。©2012 Wiley Periodicals，Inc.。
• Highly Enantioselective Biginelli Reaction Promoted by Chiral Bifunctional Primary Amine-Thiourea Catalysts: Asymmetric Synthesis of Dihydropyrimidines
  作者：Yangyun Wang、Haitao Yang、Jipan Yu、Zhiwei Miao、Ruyu Chen

  DOI：10.1002/adsc.200900597

  日期：2009.12

  reaction was performed by using a combined catalyst consisting of a chiral bifunctional primary amine-thiourea 9f and a Brønsted acid with tert-butylammonium trifluoroacetate (t-BuNH2⋅TFA) as additive in dichloromethane at room temperature. The possible mechanism for the reaction has been proposed to explain the origin of the activation and the asymmetric induction.

  通过Biginelli反应，以中等至高收率（高达99％ee）实现了二氢嘧啶（DHPM）的非对映特异性形成。将反应物通过使用由手性双官能伯胺-硫脲的组合的催化剂进行9F和布朗斯台德酸与叔-butylammonium三氟乙酸盐（叔BuNH 2 ⋅TFA）在室温下在二氯甲烷中的添加剂。已经提出了反应的可能机理来解释活化和不对称诱导的起源。
• Primary Amine Catalyzed Biginelli Reaction for the Enantioselective Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones
  作者：Derong Ding、Cong-Gui Zhao

  DOI：10.1002/ejoc.201000448

  日期：——

  Several chiral primary amines, mainly those derived from the cinchona alkaloids, were evaluated as the organocatalysts for the asymmetric Biginelli reaction. With the quinine-derived amine catalyst 1 and after extensive optimization of the reaction conditions, 3,4-dihydropyrimidin-2(1H)-ones were obtained in moderate to good yields and 51-78% ee from a three-component reaction of aryl and aliphatic

  几种手性伯胺，主要来自金鸡纳生物碱，被评估为不对称 Biginelli 反应的有机催化剂。使用奎宁衍生的胺催化剂 1 和反应条件的广泛优化后，3,4-二氢嘧啶-2(1H)-酮以中等至良好的收率和 51-78% ee 从芳基的三组分反应中获得和脂肪醛、尿素和乙酰乙酸酯。
• Bifunctional primary amine-thiourea–TfOH (BPAT·TfOH) as a chiral phase-transfer catalyst: the asymmetric synthesis of dihydropyrimidines
  作者：Yangyun Wang、Jipan Yu、Zhiwei Miao、Ruyu Chen

  DOI：10.1039/c0ob01268h

  日期：——

  An enantioselective Biginelli reaction has been developed by using a bifunctional primary amine-thiourea–TfOH (BPAT·TfOH) as a chiral phase-transfer catalyst and t-BuNH2·TFA as an additive in saturated brine at room temperature. The corresponding dihydropyrimidines were obtained in moderate-to-good yields with up to 99% ee under mild conditions. A plausible transition state has been proposed to explain the origin of the activation and the asymmetric induction.

  在室温饱和盐水中，使用双功能伯胺-硫脲-TfOH（BPATÂ-TfOH）作为手性相转移催化剂和 t-BuNH2Â-TFA 作为添加剂，开发了一种对映体选择性 Biginelli 反应。在温和的条件下，得到了相应的二氢嘧啶，收率从中等到良好，ee高达 99%。研究人员提出了一种可信的过渡态来解释活化和不对称诱导的起源。
• ENANTIOSELECTIVE SYNTHESIS OF DIHYDROPYRIMIDINONES AND HEXAHYDROPYRIMIDINONES
  申请人：Universitat de les Illes Balears

  公开号：EP3260446A1

  公开（公告）日：2017-12-27

  The present invention provides with a "one pot" easily scalable preparation process, or method to obtain enantiomerically enriched dihydropyrimidinones (DHPMs), in high yield and high enantiomeric purity, based on the concept of organocatalysis by a network of cooperative hydrogen bonds (NCHB). Said preparation process obtains enantiomerically enriched DHPMs without the use of metal-based catalysis and with the possibility of the recovery of the chiral organocatalyst comprising a NCHB used. The present invention also provides with new enantiomerically and diastereomerically enriched hexahydropyrimidinones (HHPMs), as well as a preparation process to obtain them also based on the concept of organocatalysis by a NCHB. Said preparation process obtains enantiomerically and diastereomerically enriched HHPMs without the use of metal-based catalysis and with the possibility of the recovery of the chiral organocatalyst comprising a NCHB used.

  本发明基于协同氢键网络（NCHB）有机催化的概念，提供了一种 "一锅式 "易扩展的制备工艺或方法，以高产率和高对映体纯度获得对映体富集的二氢嘧啶酮（DHPMs）。所述制备工艺无需使用金属催化，即可获得对映体富集的 DHPM，并有可能回收由所使用的 NCHB 组成的手性有机催化剂。本发明还提供了新的对映异构体和非对映异构体富集的六氢嘧啶酮（HHPMs），以及同样基于 NCHB 有机催化概念的获得它们的制备工艺。该制备工艺无需使用金属催化即可获得对映体和非对映异构体富集的六氢嘧啶酮（HHPMs），并有可能回收由所使用的 NCHB 组成的手性有机催化剂。