5-甲基-3-(4-甲基苯基)-1,2-恶唑 | 156777-04-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 5-甲基-3-(4-甲基苯基)-1,2-恶唑
• 英文名称: 3-(4-methylphenyl)-5-methylisoxazole
• 英文别名: Isoxazole, 5-methyl-3-(4-methylphenyl)-；5-methyl-3-(4-methylphenyl)-1,2-oxazole
• CAS: 156777-04-7
• 化学式: C₁₁H₁₁NO
• 分子量: 173.214
• InChiKey: QBMKCADJPSHACR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  26
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-甲基-3-(4-甲基苯基)-1,2-恶唑 在 氧气 、 臭氧 作用下， 以 二氯甲烷 为溶剂， 生成 5-methyl-3-p-methylphenylisoxazole-ozonide
  参考文献：
  名称：

  Ozonolysis of Substituted Isoxazoles

  摘要：

  The ozonolysis of substituted isoxazoles was investigated. The ozonolysis rates and the products were dependent on the site of the substituent group on isoxazole ring. The reaction mechanism of the ozonolysis of isoxazoles was also proposed.

  DOI：

  10.3987/com-93-s119
• 作为产物：
  描述：

  p-methylbenzaldehyde oxime 在 N-氯代丁二酰亚胺 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 、 sodium iodide 、 碘甲烷 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 39.0h， 生成 5-甲基-3-(4-甲基苯基)-1,2-恶唑
  参考文献：
  名称：

  Preparation of isoxazol(in)yl substituted selenides and their further deselenenylation reaction to synthesize 3,5-disubstituted isoxazoles

  摘要：

  We report a mild 1,3-dipolar cycloaddition protocol for the preparation of 3-aryl-5-phenylselenomethyl isoxazoles and isoxazolines regioselectively. The former was further reacted with LDA and electrophilic substrates followed by selenoxide syn-elimination to afford 3-aryl-5-E-substituted-ethenyl isoxazoles stereoselectively and the latter was subjected to a 'two-step' elimination to afford 3-aryl-5-methyl isoxazoles. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.071

文献信息

• Efficient and Regioselective One-Pot Synthesis of 3-Substituted and 3,5-Disubstituted Isoxazoles
  作者：Shibing Tang、Jinmei He、Yongquan Sun、Liuer He、Xuegong She

  DOI：10.1021/ol901626n

  日期：2009.9.3

  A series of 3-substituted and 3,5-disubstituted isoxazoles have been efficiently synthesized in moderate to excellent yields by the reaction of N-hydroxyl-4-toluenesulfonamide with α,β-unsaturated aldehydes/ketones. This novel strategy is associated with readily available starting materials, mild conditions, high regioselectivity, and wide scope.

  通过N-羟基-4-甲苯磺酰胺与α，β-不饱和醛/酮的反应，已经以中等至优异的产率有效地合成了一系列3-取代的和3，5-二取代的异恶唑。这种新颖的策略与容易获得的起始原料，温和的条件，较高的区域选择性和广泛的范围有关。
• Cycloisomerization of acetylenic oximes and hydrazones under gold catalysis: Synthesis and cytotoxic evaluation of isoxazoles and pyrazoles
  作者：J C JEYAVEERAN、CHANDRASEKAR PRAVEEN、Y ARUN、A A M PRINCE、P T PERUMAL

  DOI：10.1007/s12039-015-0993-9

  日期：2016.1

  The synthesis of substituted isoxazoles and pyrazoles through a general cycloisomerization methodology has been reported. The capability of gold(III) chloride to promote cycloisomerization of both α, β-acetylenic oximes and α, β-acetylenic hydrazones is the centrepiece of the strategy. A range of acetylenic precursors were investigated to afford 28 examples of the products with good to excellent chemical yields. Selected compounds were screened for their cytotoxic potential towards COLO320 cancer cell lines. The IC50 values of the tested compounds were in the micromolar range, with the best compound, 5-(6-Methoxy-naphthalen-2-yl)-3-phenyl-isoxazole (3h) displaying an IC50 of 38.9 μM. For this compound, the crystal structure in complex with Aurora-A kinase was obtained which revealed details of its binding mode within the active site with a free energy of binding -9.54 kcal/mol.

  通过一种通用的环异构化方法，已经报道了取代异恶唑和吡唑的合成。金(III)氯化物促进α,β-炔基肟和α,β-炔基脒的环异构化的能力是该策略的核心。研究了一系列炔基前体，以良好的至优秀的化学收率得到了28个产物实例。选定的化合物对COLO320癌细胞系的细胞毒性潜力进行了筛选。测试化合物的IC50值在微摩尔范围内，其中最佳化合物5-(6-甲氧基萘-2-基)-3-苯基异恶唑(3h)的IC50值为38.9 μM。对于该化合物，获得了与Aurora-A激酶复合的晶体结构，揭示了其在活性位点内的结合模式，结合自由能为-9.54 kcal/mol。
• ARYL COMPOUNDS AS PPAR LIGANDS AND THEIR USE
  申请人：Kang Heonjoong

  公开号：US20120271055A1

  公开（公告）日：2012-10-25

  The present invention relates to a compound as a peroxisome proliferator activated receptor (PPAR) activator and a hydrate, a solvate, a stereoisomer and a pharmaceutically acceptable salt thereof, and a pharmaceutical composition, a cosmetic composition, a muscle strengthening agent, a memory improving agent, a therapeutic agent for dementia and Parkinson's disease, a functional food and a feed composition containing the same.

  本发明涉及一种作为过氧化物酶体增殖物激活受体（PPAR）激活剂的化合物及其水合物、溶剂化合物、立体异构体和药用可接受盐，以及含有该化合物的药物组合物、化妆品组合物、肌肉强化剂、记忆改善剂、治疗痴呆症和帕金森病的药物、功能性食品和含有该化合物的饲料组合物。
• Reaction of allenylmagnesium and allenylindium bromides with nitrile oxides: synthesis of novel 5-butynyl- and 5-methylisoxazoles
  作者：H.M. Sampath Kumar、Parvinder Pal Singh、Syed Shafi、Pitta Bhaskar Reddy、Kankala Shravankumar、Doma Mahender Reddy

  DOI：10.1016/j.tetlet.2006.11.140

  日期：2007.1

  obtained in high yields through a domino addition, C–O heterocyclization involving allenylmagnesium bromide and benzonitrile oxide in dry THF, in which the corresponding 5-methylisoxazoles were isolated in trace amounts. However, when the reactions were attempted in aqueous media using allenylindium bromide, 5-methylisoxazoles were formed as the sole products in high yields.

  通过将多烯基溴化镁和苯甲腈氧化物在干燥的THF中进行多米诺骨牌加成，C–O杂环化，可以高收率地获得5-丁炔基异恶唑，其中分离出痕量的相应的5-甲基异恶唑。然而，当尝试在含水介质中使用烯丙基溴化铟进行反应时，以高收率形成了5-甲基异恶唑作为唯一产物。
• Gold(III)-Catalyzed Synthesis of Isoxazoles by Cycloisomerization of α,β-Acetylenic Oximes
  作者：P. Perumal、C. Praveen、A. Kalyanasundaram

  DOI：10.1055/s-0029-1219342

  日期：2010.3

  β-acetylenic oximes leading to substituted isoxazoles was achieved using AuCl 3 as catalyst, under moderate reaction conditions. The reaction can be applied to various acetylenic oximes and gives good to excellent yields. The methodology is amenable for the selective synthesis of 3-substituted, 5-substituted or 3,5-disubstituted isoxazoles by simply altering the substituents on the acetylenic oximes.

  使用AuCl 3 作为催化剂，在温和的反应条件下实现了α,β-炔属肟的环异构化，产生了取代的异恶唑。该反应可以应用于各种炔属肟，并产生良好的收率。该方法适用于通过简单地改变炔肟上的取代基来选择性合成 3-取代、5-取代或 3,5-二取代的异恶唑。