(4-oxo-3,4-dihydroquinazolin-2-ylsulfanyl)-N,N-diethylacetamide | 51487-24-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: (4-oxo-3,4-dihydroquinazolin-2-ylsulfanyl)-N,N-diethylacetamide
• 英文别名: N,N-diethyl-2-(4-oxo-3,4-dihydro-quinazolin-2-ylsulfanyl)-acetamide；N,N-diethyl-2-[(4-hydroxy-2-quinazolinyl)thio]acetamide；N,N-diethyl-2-[(4-oxo-3H-quinazolin-2-yl)sulfanyl]acetamide
• CAS: 51487-24-2
• 化学式: C₁₄H₁₇N₃O₂S
• 分子量: 291.374
• InChiKey: PZPRVLDOUDCEAH-UHFFFAOYSA-N

物化性质

• 沸点：
  468.4±47.0 °C(Predicted)
• 密度：
  1.27±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  87.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-氨基苯甲酸乙酯 在 potassium thioacyanate 作用下， 以 1,4-二氧六环 、 乙腈 为溶剂， 反应 8.0h， 生成 (4-oxo-3,4-dihydroquinazolin-2-ylsulfanyl)-N,N-diethylacetamide
  参考文献：
  名称：

  New Syntheses of 2-Alkylthio-4-oxo-3,4-dihydroquinazolines, 2 - Alkylthio - quinazolines, as well as Their Hetero Analogues

  摘要：

  N-Chloroacetylanthranilic acid ethyl ester reacts with potassium thiocyanate in the presence of alcohol to give the (4-oxo-3,4-dihydroquinazolin-2-yl-sulfanyl)acetic acid ester (3a). In the presence of water or amines the acetic acid derivative (3b) or the acetamide derivatives (3c,d) are obtained. 2-Amino-di-oxo-3,4-dihydroquinazolines (4) arise if vigorous reaction conditions are employed. Analogously, N-chloroacetyl derivatives of 5-membered heterocycles with enaminocarbonyl structure (5, 7, 9, 11, 13, 20, 23) react with potassium thiocyanate to yield thieno[2,3-d]-, thieno[3,2-d]-, imidazo[4,5-d]-, pyrrolo[3,2-d]-, and thiazolo[4,5-d]pyrimidines (6, 8, 10, 12, 14, 21, 24). Quinazolines (18, 19) are formed from the reaction of 2-chloroacetylaminoacetophenone (16a) and 2-chloroacetylaminobenzophenone (16b) with potassium thiocyanate and subsequent treatment of the intermediates with. amines.

  DOI：

  10.3987/com-00-8954

文献信息

• New Syntheses of 2-Alkylthio-4-oxo-3,4-dihydroquinazolines, 2 - Alkylthio - quinazolines, as well as Their Hetero Analogues
  作者：Margit Gruner、Matthias Rehwald、Katrin Eckert、Karl Gewald

  DOI：10.3987/com-00-8954

  日期：——

  N-Chloroacetylanthranilic acid ethyl ester reacts with potassium thiocyanate in the presence of alcohol to give the (4-oxo-3,4-dihydroquinazolin-2-yl-sulfanyl)acetic acid ester (3a). In the presence of water or amines the acetic acid derivative (3b) or the acetamide derivatives (3c,d) are obtained. 2-Amino-di-oxo-3,4-dihydroquinazolines (4) arise if vigorous reaction conditions are employed. Analogously, N-chloroacetyl derivatives of 5-membered heterocycles with enaminocarbonyl structure (5, 7, 9, 11, 13, 20, 23) react with potassium thiocyanate to yield thieno[2,3-d]-, thieno[3,2-d]-, imidazo[4,5-d]-, pyrrolo[3,2-d]-, and thiazolo[4,5-d]pyrimidines (6, 8, 10, 12, 14, 21, 24). Quinazolines (18, 19) are formed from the reaction of 2-chloroacetylaminoacetophenone (16a) and 2-chloroacetylaminobenzophenone (16b) with potassium thiocyanate and subsequent treatment of the intermediates with. amines.