methyl 3-(4-methylphenyl)isoxazole-5-carboxylate | 134378-94-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: methyl 3-(4-methylphenyl)isoxazole-5-carboxylate
• 英文别名: methyl 3-(p-tolyl)isoxazole-5-carboxylate；3-p-tolyl-isoxazole-5-carboxylic acid methyl ester；5-Isoxazolecarboxylic acid, 3-(4-methylphenyl)-, methyl ester；methyl 3-(4-methylphenyl)-1,2-oxazole-5-carboxylate
• CAS: 134378-94-2
• 化学式: C₁₂H₁₁NO₃
• mdl: MFCD02737757
• 分子量: 217.224
• InChiKey: DQKLNXNTMSKHBC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.166
• 拓扑面积：
  52.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  在 sodium methylate 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 18.0h， 以86%的产率得到methyl 3-(4-methylphenyl)isoxazole-5-carboxylate
  参考文献：
  名称：

  基于Wang树脂结合的1-苯基硒基丙烯酸酯固相有机合成5-甲基异恶唑-5-羧酸酯

  摘要：

  摘要 开发了一种新型 Wang 树脂结合的 1-苯基硒基丙烯酸酯试剂，并将其用作偶极试剂，用于与腈氧化物的 1,3-偶极环加成反应，以区域选择性合成 3-取代异恶唑-5-羧酸甲酯，收率和纯度良好。图形概要

  DOI：

  10.1080/00397911.2011.580641

文献信息

• DFT-HSAB Prediction of Regioselectivity in 1,3-Dipolar Cycloadditions: Behavior of (4-Substituted)benzonitrile Oxides towards Methyl Propiolate
  作者：Alessandro Ponti、Giorgio Molteni

  DOI：10.1002/chem.200500739

  日期：2006.1.23

  The regioselectivity of 1,3-dipolar cycloadditions between (4-substituted)benzonitrile oxides and methyl propiolate cannot be rationalized on the basis of the electron demand of the reactants or frontier molecular-orbital theory. To this problem, we have applied a quantitative formulation of the hard-soft acid-base principle developed within the density functional theory. Global and local reactivity

  （4-取代的）苄腈氧化物与丙酸甲酯之间的1,3-偶极环加成反应的区域选择性不能根据反应物的电子需求或前沿的分子轨道理论来合理化。对于这个问题，我们应用了在密度泛函理论中发展的硬-软酸碱原理的定量公式。在B3LYP / 6-311 + G（d，p）水平上计算总体和局部反应性指数。已经阐明了反应性相遇时电荷转移的细节，并且已显示计算的区域选择性与实验数据高度吻合。
• Aminoketone derivatives and use thereof
  申请人：Mitsui Toatsu Chemicals Incorporated

  公开号：US05602160A1

  公开（公告）日：1997-02-11

  Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl] isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.

  含有杂环环与氨基酮基团键合的氨基酮衍生物化合物，可用作中枢作用肌肉松弛剂和多尿症治疗剂的有效成分。与其外消旋异构体相比，具有更显著的中枢肌肉松弛作用的(+)3-苯基-5-[2-(1-吡咯烷基)丁酰基]异噁唑可以通过使用光学活性的10-樟脑磺酸作为光学分辨剂有效地与其外消旋异构体分离。
• Aminoketone derivative and use thereof
  申请人：Mitsui Toatsu Chemicals, Incorporated

  公开号：US05498619A1

  公开（公告）日：1996-03-12

  Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl]isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.

  含有杂环环的氨基酮衍生物化合物，与氨基酮基团结合，并用作中枢作用肌肉松弛剂和治疗多尿症的有效成分。 (+)3-苯基-5-[2-(1-吡咯烷基)丁酰基]异噁唑具有比其外消旋异构体更显著的中枢肌肉松弛作用，可以使用光学活性的10-樟脑磺酸作为光学分辨剂，有效地将其与外消旋异构体分离。
• Aminoketone derivatives of 1,2-oxazole and use thereof
  申请人：Mitsui Toatsu Chemicals Incorporated

  公开号：US05338857A1

  公开（公告）日：1994-08-16

  Aminoketone derivative compounds containing a heterocyclic ring bonded to an aminoketone moiety and useful as effective ingredients of centrally acting muscle relaxants and pollakiurea curing agents. (+)3-phenyl-5-[2-(1-pyrrolidinylmethyl)butyryl]isoxazole, which has a more remarkable central muscle relaxant action as compared with its racemic modification, can be effectively separated from the racemic modification using optically active 10-camphorsulfonic acid as the agent for the optical resolution.

  含有杂环环和氨基酮基团的氨基酮衍生物化合物，可作为中枢作用肌肉松弛剂和治疗排尿频繁的药剂。(+)-3-苯基-5-[2-(1-吡咯烷基)丁酰基]异噁唑与其外消旋异构体相比，具有更显著的中枢肌肉松弛作用，可以使用光学活性的10-樟脑磺酸作为光学分辨剂有效地分离出来。
• Hypervalent iodine mediated synthesis of di- and tri-substituted isoxazoles via [3+2] cycloaddition of nitrile oxides
  作者：Ankur Singhal、Santosh Kumar Reddy Parumala、Arun Sharma、Rama Krishna Peddinti

  DOI：10.1016/j.tetlet.2015.10.038

  日期：2016.2

  An efficient and rapid protocol for the synthesis of 3,4-disubstituted and 3,4,5-trisubstituted isoxazoles under catalyst-free conditions is described. This protocol involves pre-oxidation of aldoxime into nitrile oxide using diacetoxyiodobenzene. The in situ generated nitrile oxide was trapped with dipolarophiles for the formation of functionally rich isoxazoles via [3+2] cycloaddition. (C) 2016 Published by Elsevier Ltd.