(2,4-dimethyloxazol-5-yl)(phenyl)methanone | 100063-05-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2,4-dimethyloxazol-5-yl)(phenyl)methanone
• 英文别名: (2,4-Dimethyl-1,3-oxazol-5-yl)-phenylmethanone
• CAS: 100063-05-6
• 化学式: C₁₂H₁₁NO₂
• 分子量: 201.225
• InChiKey: AXBSQONJMWMZAI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  43.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2,4-dimethyloxazol-5-yl)(phenyl)methanone 在 lithium aluminium tetrahydride 、 乙醚 作用下， 生成 (2,4-dimethyl-oxazol-5-yl)-phenyl-methanol
  参考文献：
  名称：

  Notes - Synthesis of Heterocyclic Aminoethers Related to Diphenyhydramine

  摘要：

  DOI：

  10.1021/jo01356a601
• 作为产物：
  描述：

  (Z)-N-(4-oxo-4-phenylbut-2-en-2-yl)acetamide 在 三氟化硼乙醚 、 1-氟-3,3-二甲基-1,2-苯并碘氧杂戊环 作用下， 以 乙腈 为溶剂， 反应 3.0h， 以95%的产率得到(2,4-dimethyloxazol-5-yl)(phenyl)methanone
  参考文献：
  名称：

  N-乙酰基烯胺的高价碘介导的合成恶唑和咪唑的反应。

  摘要：

  研究了用于N-乙酰基烯胺分子内环化以及烯胺和腈的分子间环缩合的高价碘试剂。该反应在温和的条件下进行，分别以中等至优异的产率得到恶唑和咪唑。该转化表现出良好的反应性，选择性和官能团耐受性。分子内或分子间反应的选择性取决于N-乙酰基烯胺的结构。

  DOI：

  10.1039/c9ob01895f

文献信息

• Hypervalent iodane mediated reactions of <i>N</i>-acetyl enamines for the synthesis of oxazoles and imidazoles
  作者：Kang Xu、Ruiqi Yang、Shuang Yang、Cheng Jiang、Zhenhua Ding

  DOI：10.1039/c9ob01895f

  日期：——

  cyclization of N-acetyl enamines and intermolecular cyclocondensation of enamines and nitriles was investigated. The reaction was performed under mild conditions and gave oxazoles and imidazoles, respectively, in moderate to excellent yields. This transformation exhibits good reactivity, selectivity and functional group tolerance. The selectivity of the intra- or intermolecular reaction is dependent on the

  研究了用于N-乙酰基烯胺分子内环化以及烯胺和腈的分子间环缩合的高价碘试剂。该反应在温和的条件下进行，分别以中等至优异的产率得到恶唑和咪唑。该转化表现出良好的反应性，选择性和官能团耐受性。分子内或分子间反应的选择性取决于N-乙酰基烯胺的结构。
• I₂-Catalyzed C–O Bond Formation and Dehydrogenation: Facile Synthesis of Oxazolines and Oxazoles Controlled by Bases
  作者：Wen-Chao Gao、Fei Hu、Yu-Ming Huo、Hong-Hong Chang、Xing Li、Wen-Long Wei

  DOI：10.1021/acs.orglett.5b01933

  日期：2015.8.7

  A general method for the synthesis of oxazolines and oxazoles was developed through I-2-catalyzed C-O bond formation and dehydrogenation with the same oxidant, TBHP. By simply tuning reaction bases, either oxazolines or oxazoles were selectively produced from beta-acylamino ketones.
• Synthesis of Oxazoles from Enamides via Phenyliodine Diacetate-Mediated Intramolecular Oxidative Cyclization
  作者：Yunhui Zheng、Xuming Li、Chengfeng Ren、Daisy Zhang-Negrerie、Yunfei Du、Kang Zhao

  DOI：10.1021/jo302073e

  日期：2012.11.16

  A group of functionalized oxazoles were synthesized in moderate to good yields from enamides via phenyliodine diacetate (PIDA)-mediated intramolecular cyclization. The main advantageous features of the present method include its broad substrate scope and the heavy-metal-free characteristic of the oxidative carbon-oxygen bond formation process.
• Synthesis of 2-(Trifluoromethyl)oxazoles from β-Monosubstituted Enamines via PhI(OCOCF₃)₂-Mediated Trifluoroacetoxylation and Cyclization
  作者：Feifei Zhao、Xin Liu、Rui Qi、Daisy Zhang-Negrerie、Jianhui Huang、Yunfei Du、Kang Zhao

  DOI：10.1021/jo202070h

  日期：2011.12.16

  Treatment of beta-monosubstituted enamines with phenyliodine bis(trifluoroacetate) (PIFA) was found to give a variety of 4,5-disubstituted 2-(trifluoromethyl)oxazoles. This approach allows the incorporation of the trifluoromethyl moiety in PIFA into the final products, which presumably takes place via the oxidative beta-trifluoroacetoxylation of the enamine substrates followed by subsequent intramolecular cyclization.
• A rapid access to substituted oxazoles via PIFA-mediated oxidative cyclization of enamides
  作者：Midori Kamiya、Motohiro Sonoda、Shinji Tanimori

  DOI：10.1016/j.tet.2017.01.027

  日期：2017.3

  A facile and rapid access to multi-substituted oxazoles has been achieved under mild reaction conditions in a short reaction time. Reaction of enamides 1 with [bis(trifluoroacetoxy)iodo]benzene (PIFA) in trifluoroethanol (TFE) at room temperature for 15 min afforded the desired oxazoles 2 in moderate to excellent yields (58-98%). A wide range of functional group tolerance has been observed for these transformations. (C) 2017 Elsevier Ltd. All rights reserved.