methyl 2-(4-methoxylphenyl)oxazole-4-carboxylate | 154405-98-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: methyl 2-(4-methoxylphenyl)oxazole-4-carboxylate
• 英文别名: Methyl 2-(4-methoxyphenyl)oxazole-4-carboxylate；methyl 2-(4-methoxyphenyl)-1,3-oxazole-4-carboxylate
• CAS: 154405-98-8
• 化学式: C₁₂H₁₁NO₄
• 分子量: 233.224
• InChiKey: DFKBJKUJIGHDGT-UHFFFAOYSA-N

物化性质

• 熔点：
  111-112 °C
• 沸点：
  363.9±48.0 °C(Predicted)
• 密度：
  1.210±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  61.6
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  methyl 2-(4-methoxylphenyl)oxazole-4-carboxylate 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 生成 [2-(4-甲氧基苯基)噁唑-4-基]甲醇
  参考文献：
  名称：

  Discovery of the disubstituted oxazole analogues as a novel class anti-tuberculotic agents against MDR- and XDR-MTB

  摘要：

  A high-throughput screening effort on 45,000 compounds resulted in the discovery of a disubstituted oxazole as a new structural class inhibitor of Mycobacterium tuberculosis (Mtb). In order to improve the activity and investigate the SAR of this scaffold, a series of disubstituted azole analogues have been designed and synthesized. The newly synthesized compounds 1a-y were evaluated for their in vitro anti-TB activity versus replicating, multi-and extensive drug resistant Mtb strains. All the compounds, except 1o, 1p and 1q, showed potent anti-TB activity with MIC of 1-64 mg/L. The test of broad spectrum panel revealed that this series are specific to Mtb. The cytotoxicity assessment indicated that the compounds were not cytotoxic against HEK 293 cells. The compounds could have a novel mechanism to anti-Mtb as they can inhibit drug sensitive and drug resistant Mtb. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2015.09.072
• 作为产物：
  描述：

  4-甲氧基苯甲腈 在 dirhodium tetraacetate 双氧水 、 三乙基硼氢化锂 作用下， 以 氯仿 为溶剂， 反应 7.0h， 生成 methyl 2-(4-methoxylphenyl)oxazole-4-carboxylate
  参考文献：
  名称：

  铑催化的1,3-恶唑杂环加成途径是天然产物合成的基础

  摘要：

  乙酸铑（II）用作重氮二羰基化合物与腈的杂环加成反应的催化剂，可通过简单的一步过程即可得到官能化的1,3-恶唑衍生物。特别地，重氮丙二酸二甲酯经历该反应以产生2-芳基-，2-烯基-或2-烷基-4-羰基甲氧基-5-甲氧基-1,3-恶唑和甲酰基重氮乙酸乙酯（重氮丙二酸酯半酯半醛）得到2-芳基-，2-烯基-或2-烷基-4-羰基乙氧基-1,3-恶唑。这些产物作为重要的中间体，在合成几种含恶唑的天然产物和其他杂环系统中具有潜在的重要性。

  DOI：

  10.1016/s0040-4020(01)87261-6

文献信息

• Metal-free C–H amination of arene with <i>N</i>-fluorobenzenesulfonimide catalysed by nitroxyl radicals at room temperature
  作者：Qi Miao、Zhong Shao、Cuiying Shi、Lifang Ma、Fang Wang、Ruoqi Fu、Haochen Gao、Ziyuan Li

  DOI：10.1039/c9cc02739d

  日期：——

  amination of arene through C–H bond cleavage employing N-fluorobenzenesulfonimide (NFSI) as the amination reagent in good to excellent yields with broad arene scope in the absence of any metal, ligand or additive is reported. Unlike previous transition metal-catalysed aminations in which high reaction temperatures are usually necessary, this novel reaction at room temperature is the first example of C–H

  据报道，在不使用任何金属，配体或添加剂的情况下，使用N-氟苯磺酰亚胺（NFSI）作为胺化试剂，通过TEMP键催化的芳烃通过C–H键断裂的直接胺化反应具有良好的收率和优异的收率。与以前通常需要高反应温度的过渡金属催化胺化反应不同，这种在室温下的新颖反应是通过有机催化实现的NFSI的C–H胺化反应的第一个例子。还提出了这种简洁胺化的可能机理。
• Cobalt-Catalyzed Cross-Dehydrogenative C(sp² )−C(sp³ ) Coupling of Oxazole/Thiazole with Ether or Cycloalkane
  作者：Xiaojiao Wang、Bowen Lei、Lifang Ma、Lisi Zhu、Xinyue Zhang、Hao Zuo、Dailin Zhuang、Ziyuan Li

  DOI：10.1002/asia.201701258

  日期：2017.11.2

  Direct C5‐alkylation of oxazole/thiazole with ether or cycloalkane has been achieved through a cobalt‐catalyzed cross‐dehydrogenative coupling (CDC) process in moderate to good yields. This transformation represents the first C(sp2)−C(sp3) cross‐coupling at the C5‐position of the oxazole/thiazole via double C−H bond cleavages. Various functional groups on oxazole/thiazole substrates, as well as water

  通过钴催化的交叉脱氢偶联（CDC）工艺，恶唑/噻唑与醚或环烷烃直接进行C5-烷基化反应，产率中等至良好。这种转变代表通过双CH键断裂在恶唑/噻唑的C5位上的第一个C（sp 2）-C（sp 3）交叉偶联。简明实用的方案很好地耐受了恶唑/噻唑底物上的各种官能团，以及水和空气，构成了直接进入具有重要医学意义的杂环的方法。还提出了涉及激进过程的初步机制。
• Palladium-catalyzed oxidative cross-coupling of azole-4-carboxylates with indoles: an approach to the synthesis of pimprinine
  作者：Haipin Zhou、Kuo Gai、Aijun Lin、Jinyi Xu、Xiaoming Wu、Hequan Yao

  DOI：10.1039/c4ob01844c

  日期：——

  An efficient and straightforward method for the production of 5-(3-indolyl)azoles incorporating the privileged structures indoles and azoles via palladium-catalyzed double C-H bond cleavage under mild conditions was disclosed. As expected, this protocol provided an easy method for the synthesis of indole alkaloids pimprinine and WS-30581 A in moderate yields.

  公开了一种通过在温和的条件下通过钯催化的双CH键裂解来制备结合有特权结构吲哚和唑的5-（3-吲哚基）唑的有效而直接的方法。如预期的那样，该方案为中等产率的吲哚生物碱嘧啶和WS-30581 A的合成提供了一种简便的方法。
• Pd(ii)-catalyzed direct C5-arylation of azole-4-carboxylates through double C–H bond cleavage
  作者：Ziyuan Li、Ling Ma、Jinyi Xu、Lingyi Kong、Xiaoming Wu、Hequan Yao

  DOI：10.1039/c2cc00081d

  日期：——

  The first palladium-catalyzed direct C5-arylation of azole-4-carboxylates with simple unactivated arenes through double C–H bond cleavage is realized. This protocol provided a straightforward access to diverse 5-arylsubstituted azole-4-carboxylic derivatives with good functional group tolerance.

  首次实现了通过双C–H键断裂的铂催化直接C5-芳基化反应，将简单的未活化芳烃与azole-4-羧酸酯进行反应。该协议提供了一种简便的方法，获得了多种5-芳基取代的azole-4-羧酸衍生物，并具有良好的功能团耐受性。
• DDQ-promoted direct C5-alkylation of oxazoles with alkylboronic acids via palladium-catalysed C–H bond activation
  作者：Bowen Lei、Xiaojiao Wang、Lifang Ma、Huixuan Jiao、Lisi Zhu、Ziyuan Li

  DOI：10.1039/c7ob01083d

  日期：——

  A novel and concise C5-alkylation of oxazole using alkylboronic acids as the alkyl donor via Pd(II)-catalysed C-H bond activation has been achieved in moderate to good yields with satisfactory functional group tolerance. Instead of commonly used BQ as a key promoter, DDQ was discovered to be a better additive that significantly promoted this alkylation. This efficient and advanced method represents

  使用烷基硼酸作为烷基供体通过Pd（II）催化的CH键活化，实现了新颖简明的恶唑C5-烷基化反应，具有中等至良好的收率，并具有令人满意的官能团耐受性。发现DDQ替代了通常使用的BQ作为关键促进剂，它是一种显着促进这种烷基化的更好的添加剂。这种高效，先进的方法代表了在恶唑的C5位上的第一个C（sp2）-C（sp3）交叉偶联反应，由于其在含恶唑生物活性分子的后期功能化中的潜在应用而特别引人注目。