2-(4-methylbenzoyl)-4-methylthiazole | 142731-32-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(4-methylbenzoyl)-4-methylthiazole
• 英文别名: (4-Methylphenyl)-(4-methyl-1,3-thiazol-2-yl)methanone；(4-methylphenyl)-(4-methyl-1,3-thiazol-2-yl)methanone
• CAS: 142731-32-6
• 化学式: C₁₂H₁₁NOS
• 分子量: 217.291
• InChiKey: WPVKUPJSHMHSMA-UHFFFAOYSA-N

物化性质

• 沸点：
  371.8±45.0 °C(Predicted)
• 密度：
  1.188±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 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：
  58.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-(4-methylphenacyl)-4-methylthiazolium chloride 在 盐酸 、 sodium hydroxide 作用下， 以 甲醇 为溶剂， 反应 42.0h， 生成 2-(4-methylbenzoyl)-4-methylthiazole
  参考文献：
  名称：

  Aqueous base induced selective transformations of 3-(2-oxoalkyl) thiazolium cations

  摘要：

  The title compounds react with aqueous sodium hydroxide (i) 2%, 1 equiv., (ii) 2%, 2 equiv., and (iii) 8%, 2 equiv., to give 2-hydroxy-2-alkyl/aryl-4-formyl-2, 3-dihydro- 1, 4-thiazines (7), 2-alkyl/aryl-4-formyl-1, 4-thiazines (8) and 2-aroylthiazoles (9), respectively. 7 and 8 with 8% aqueous sodium hydroxide form 9, but 7 with 2% aqueous sodium hydroxide or TFA give 8.

  DOI：

  10.1016/s0040-4020(01)81227-8

文献信息

• Direct C-2 Acylation of Thiazoles with Aldehydes via Metal- and Solvent-Free C–H Activation in the Presence of tert-Butyl Hydroperoxide
  作者：Bhalchandra Bhanage、Ashok Khemnar

  DOI：10.1055/s-0033-1340068

  日期：——

  activation of aldehydes and thiazoles is developed. The reaction occurs smoothly, under metal-, acid- and solvent-free conditions using tert-butyl hydroperoxide as the oxidant under an air atmosphere, to afford a wide range of heteroaryl ketones in moderate to good yields. The sp2 C–H bonds in the aldehyde and thiazole undergo direct oxidative cross-coupling, resulting in C-2 acylation of the azole

  开发了一种通过醛和噻唑的 C-H 活化合成杂芳基酮的新型有效方法。在空气气氛下使用叔丁基氢过氧化物作为氧化剂，在无金属、无酸和无溶剂的条件下，该反应顺利进行，以中等至良好的收率提供范围广泛的杂芳基酮。醛和噻唑中的 sp2 C-H 键发生直接氧化交叉偶联，导致唑的 C-2 酰化。
• Aqueous base induced selective transformations of 3-(2-oxoalkyl) thiazolium cations
  作者：Harjit Singh、Daman jit Singh、Subodh Kumar

  DOI：10.1016/s0040-4020(01)81227-8

  日期：1992.1

  The title compounds react with aqueous sodium hydroxide (i) 2%, 1 equiv., (ii) 2%, 2 equiv., and (iii) 8%, 2 equiv., to give 2-hydroxy-2-alkyl/aryl-4-formyl-2, 3-dihydro- 1, 4-thiazines (7), 2-alkyl/aryl-4-formyl-1, 4-thiazines (8) and 2-aroylthiazoles (9), respectively. 7 and 8 with 8% aqueous sodium hydroxide form 9, but 7 with 2% aqueous sodium hydroxide or TFA give 8.