5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylic acid methylester | 25113-27-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylic acid methylester
• 英文别名: 1,3-Diphenyl-5-methylpyrazol-4-carbonsaeure-methylester；methyl 5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylate；5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylic acid methyl ester；5-Methyl-1,3-diphenyl-1H-pyrazol-4-carbonsaeure-methylester；1,3-Diphenyl-5-methyl-pyrazol-carbonsaeure-(4)-methylester；Methyl 5-methyl-1,3-diphenylpyrazole-4-carboxylate
• CAS: 25113-27-3
• 化学式: C₁₈H₁₆N₂O₂
• 分子量: 292.337
• InChiKey: HVZACYGKHVGKTH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 盐酸 作用下， 生成 5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylic acid methylester
  参考文献：
  名称：

  v. Auwers; Mauss, Chemische Berichte, 1926, vol. 59, p. 612

  摘要：

  DOI：

文献信息

• An efficient copper-catalyzed formation of highly substituted pyrazoles using molecular oxygen as the oxidant
  作者：Mamta Suri、Thierry Jousseaume、Julia J. Neumann、Frank Glorius

  DOI：10.1039/c2gc35476d

  日期：——

  An efficient Cu-catalyzed formation of tetra-substituted pyrazoles is reported. In this atom economic process, readily available enamines and nitriles are reacted by C–C and N–N bond formation. Oxygen has been successfully used as the oxidant, which has important economic and environmental advantages. A broad scope of enamines and nitriles can be utilized in this process.

  报道了一种高效的铜催化四取代吡唑的形成反应。在这个原子经济过程中，通过C-C和N-N键的形成，易得的烯胺和腈类化合物进行了反应。氧气被成功用作氧化剂，具有重要的经济和环境优势。该过程中可以使用广泛的烯胺和腈类化合物。
• Rapid Assessment of Protecting-Group Stability by Using a Robustness Screen
  作者：Karl D. Collins、Andreas Rühling、Fabian Lied、Frank Glorius

  DOI：10.1002/chem.201304508

  日期：2014.3.24

  establish the stability of widely utilized silyl, acetal, and carbamate protecting groups to a given set of reaction conditions. Assessment of up to twelve protecting groups in a single experiment has been demonstrated. Evaluation of this protocol in two unrelated synthetic transformations suggests that this method can be used to select appropriate protecting groups in the design of synthetic routes.

  已经开发出一种实验上简单的方法来快速建立广泛使用的甲硅烷基，乙缩醛和氨基甲酸酯保护基在给定的一组反应条件下的稳定性。已经证明在一个实验中最多可以评估十二个保护基。在两个不相关的合成转化中对该方案的评估表明，该方法可用于在合成路线设计中选择合适的保护基。
• Efficient Synthesis of Pyrazoles: Oxidative CC/NN Bond-Formation Cascade
  作者：Julia J. Neumann、Mamta Suri、Frank Glorius

  DOI：10.1002/anie.201002389

  日期：2010.10.11

  Golden section: A novel synthetic strategy for the synthesis of tetrasubstituted pyrazoles is provided. In an efficient CC/NN bond‐formation cascade, enamines and nitriles are oxidatively coupled to deliver pyrazoles in good yields (see scheme). The ready availability of the starting materials, the high level of practicability of the reaction and work up, and the avoidance of hydrazine starting materials

  黄金部分：提供了一种合成四取代吡唑的新颖合成策略。在有效的C CC / NN键形成级联反应中，烯胺和腈氧化偶联以高产率提供吡唑（请参阅方案）。起始原料的容易获得，反应和后处理的高度实用性以及避免使用肼起始原料，使得该方法具有吸引力。
• PYRAZOLE SYNTHESIS BY COUPLING OF CARBOXYLIC ACID DERIVATIVES AND ENAMINES
  申请人：Neumann Julia

  公开号：US20130012715A1

  公开（公告）日：2013-01-10

  The invention describes a novel process for synthesizing pyrazoles by means of oxidative conversion of enamines with suitable N-containing carboxylic acid derivatives.

  这项发明描述了一种通过氧化转化烯胺和适当的含氮羧酸衍生物合成吡唑的新方法。
• Copper-Promoted Aerobic Oxidative [3+2] Cycloaddition Reactions of N,N-Disubstituted Hydrazines with Alkynoates: Access to Substituted Pyrazoles
  作者：Xiaoying Zou、Lvyin Zheng、Xiaoya Zhuo、Yumei Zhong、Yingying Wu、Beining Yang、Qifang He、Wei Guo

  DOI：10.1021/acs.joc.2c02610

  日期：2023.2.17

  A copper-promoted aerobic oxidative [3+2] cycloaddition reaction for the synthesis of various substituted pyrazoles from N,N-disubstituted hydrazines with alkynoates in the presence of bases is developed. This work involves a direct C(sp3)–H functionalization and the formation of new C–C/C–N bonds. In this strategy, inexpensive and easily available Cu2O serves as the promoter and air acts as the green

  开发了铜促进的有氧氧化 [3+2] 环加成反应，用于在碱存在下从 N,N-二取代肼与炔酸酯合成各种取代吡唑。这项工作涉及直接 C(sp 3 )–H 功能化和新 C–C/C–N 键的形成。在该策略中，廉价易得的Cu 2 O作为促进剂，空气作为绿色氧化剂。该反应具有原子和步骤经济性高、区域选择性高、操作简单等优点。