(S)-(+)-5-ethoxycarbonyl-6-methyl-4-(4-chlorophenyl)-3,4-dihydropyrimidin-2(1H)-one | 1026791-51-4

• 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: (S)-(+)-5-ethoxycarbonyl-6-methyl-4-(4-chlorophenyl)-3,4-dihydropyrimidin-2(1H)-one
• 英文别名: (S)-5-ethoxycarbonyl-4-(4-chlorophenyl)-6-methyl-3,4-dihydropyrimidin-2(1H)-one；ethyl (4S)-4-(4-chlorophenyl)-6-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate
• CAS: 1026791-51-4
• 化学式: C₁₄H₁₅ClN₂O₃
• mdl: MFCD00183936
• 分子量: 294.738
• InChiKey: JYWSCUFVWRZFDR-LBPRGKRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 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：
  3

反应信息

• 作为产物：
  描述：

  乙酰乙酸乙酯 、 4-氯苯甲醛 、 尿素 在 2,4,6-三氯苯甲酸 、 tert-gutylammonium 2,2,2-trifluoroacetate 、 N-[(1R,2R)-2-aminocyclohexyl]-N'-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-thiourea 作用下， 以 二氯甲烷 为溶剂， 反应 73.0h， 以72%的产率得到(S)-(+)-5-ethoxycarbonyl-6-methyl-4-(4-chlorophenyl)-3,4-dihydropyrimidin-2(1H)-one
  参考文献：
  名称：

  手性双功能伯胺-硫脲催化剂促进的高对映选择性Biginelli反应：二氢嘧啶的不对称合成

  摘要：

  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。

  DOI：

  10.1002/adsc.200900597

文献信息

• Highly enantioselective Biginelli reaction catalyzed by a simple chiral primary amine catalyst: asymmetric synthesis of dihydropyrimidines
  作者：Da-Zhen Xu、Hui Li、Yongmei Wang

  DOI：10.1016/j.tet.2012.07.027

  日期：2012.9

  Several chiral primary amines were introduced as organocatalysts for the asymmetric Biginelli reaction. The reaction was performed by using a combined catalyst consisting of a chiral bifunctional primary amine–pyridine 5j and hydrochloric acid in a mixed solvent of 1,4-dioxane/CHCl3 (8/2, v/v) at room temperature. The corresponding dihydropyrimidines were obtained in moderate to high yields with up

  几种手性伯胺被引入作为不对称Biginelli反应的有机催化剂。反应是在室温下，使用由手性双官能伯胺-吡啶5j和盐酸组成的混合催化剂在1,4-二恶烷/ CHCl 3（8/2，v / v）的混合溶剂中进行的。在温和条件下，以中等至高收率获得了相应的二氢嘧啶，其中ee高达> 99％。
• 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。
• Cooperative and Enantioselective NbCl5/Primary Amine Catalyzed Biginelli Reaction
  作者：Yong-Feng Cai、Hua-Meng Yang、Li Li、Ke-Zhi Jiang、Guo-Qiao Lai、Jian-Xiong Jiang、Li-Wen Xu

  DOI：10.1002/ejoc.201000894

  日期：2010.9

  evaluated in the Lewis acid/organocatalysts-based cooperative catalytic Biginelli reaction, which resulted in the determination of a novel cooperative Lewis acid/primary amine catalyst system, NbCl5/QN-NH2. The synergistic effect of NbCl5 and the quinine-derived primary amine is pronounced and gave dihydropyrimidiones (DHPMs) in moderate to good enantioselectivities (up to 84 % ee) and good to excellent yields

  在基于路易斯酸/有机催化剂的协同催化 Biginelli 反应中评估了一系列手性有机催化剂和路易斯酸，从而确定了一种新型的路易斯酸/伯胺协同催化剂体系 NbCl5/QN-NH2。NbCl5 和奎宁衍生的伯胺的协同作用是显着的，在温和的条件下以中等至良好的对映选择性（高达 84% ee）和良好至极好的产率（产率高达 99%）得到二氢嘧啶酮 (DHPM)。