1,6-Dimethyl-4-(benzotriazol-2-yl)-1,2,3,4-tetrahydroquinoline

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 1,6-Dimethyl-4-(benzotriazol-2-yl)-1,2,3,4-tetrahydroquinoline
• 英文别名: 4-(Benzotriazol-2-yl)-1,6-dimethyl-1,2,3,4-tetrahydroquinoline；4-(benzotriazol-2-yl)-1,6-dimethyl-3,4-dihydro-2H-quinoline
• 化学式: C₁₇H₁₈N₄
• 分子量: 278.357
• InChiKey: NMTODBDURQGNNA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  21
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  34
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  乙烯基乙醚 、 N-Methyl-N-(4-methylphenyl)-1H-benzotriazole-1-methanamine 在 对甲苯磺酸 作用下， 以 甲苯 为溶剂， 以12%的产率得到1,6-Dimethyl-4-(benzotriazol-2-yl)-1,2,3,4-tetrahydroquinoline
  参考文献：
  名称：

  Reactions of N-Alkyl-N-phenyl-1H-benzotriazole-1-methanamines with .alpha.,.beta.-Unsaturated Ethers. A Novel Route to 1,4- and 1,3-Disubstituted 1,2,3,4-Tetrahydroquinolines

  摘要：

  N-Alkyl-N-aryl-1H-benzotriazole-1-methanamines 3, easily accessible from the condensation of anilines with formaldehyde and benzotriazole, undergo acid-catalyzed reactions with ethyl vinyl ether to give 1-allkyl-4-(benzotriazol-1-yl)-1,2,3,4-tetrahydroquinolines 10 and their benzotriazol-2-yl isomers 11. The reaction mechanism involves formation of 1-alkyl-4-ethoxy-1,2,3,4-tetrahydroquinolines 8 as isolable intermediates, followed by substitution of the ethoxy group in 8 with benzotriazole to produce 10 and 11, Treatment with Grignard reagents in toluene converts compounds 10 and 11 in good yield to 4-alkyl- or 4-aryltetrahydroquinolines 12. 2,3-Dihydrofuran and 3,4-dihydro-2H-pyran undergo similar reaction sequences giving tetrahydroquinolines additionally substituted by 3-(beta-hydroxyethyl) and 3-(gamma-hydroxypropyl) groups, respectively. The stereochemistry of 1,3,4-trisubstituted 1,2,3,4-tetrahydroquinolines is assigned on the basis of NOE methodology. An unusual reduction of the benzotriazolyl moiety to a phenylamino group is observed in the case of product 43 obtained from the reaction of 10-(benzotriazol-1-ylmethyl)-4H-phenothiazine with ethyl vinyl ether.

  DOI：

  10.1021/jo00113a043

文献信息

• Reactions of N-Alkyl-N-phenyl-1H-benzotriazole-1-methanamines with N-Vinylamides and N-Vinylcarbazole. A Convenient Synthesis of 4-(Dialkylamino)tetrahydroquinolines
  作者：Alan R. Katritzky、Bogumila Rachwal、Stanislaw Rachwal

  DOI：10.1021/jo00118a014

  日期：1995.6

  Reactions of N-alkyl-N-phenyl-1H-benzotriazole-1-methanamines 1 with N-vinyl-2-pyrrolidinone and with N-vinyl-N-methylacetamide give 4-(2-pyrrolidinon-1-yl)- and 4-(N-methylacetamido-N-yl)-1,2,3 ,4-tetrahydroquinolines (5 and 32), respectively. In a reaction with N-vinyl-2-pyrrolidinone, alpha-alkyl (11) and alpha-aryl(18) derivatives of 1 stereoselectively give cis-2,4-disubstituted tetrahydroquinolines 16 and 21, respectively. The 2-pyrrolidinon-1-yl and acetamido-N-yl substituents in the products are reduced with lithium aluminum hydride to the corresponding amino groups. Similar reactions of N-phenyl-1H-benzotriazole-1-methanamines 1 with 9-vinylcarbazole (40) lead to the corresponding 4-(carbazol-9-yl)-1,2,3,4-tetrahydroquinolines (41 and 42) and/or analogous 4-(benzotriazol-1-yl) or 4-(benzotriazol-2-yl) derivatives (37, 38, 43, and 44), depending on the nature of the starting material and the reaction conditions. By commencing with aniline derivatives in which the nitrogen atom is built into a heterocyclic system, this method allows for the addition of a another ring to the system, as exemplified by the conversion of phenothiazine into 46 and [3,1]benzoxazine into 49, 52, and 53.
• Reactions of N-Alkyl-N-phenyl-1H-benzotriazole-1-methanamines with .alpha.,.beta.-Unsaturated Ethers. A Novel Route to 1,4- and 1,3-Disubstituted 1,2,3,4-Tetrahydroquinolines
  作者：Alan R. Katritzky、Bogumila Rachwal、Stanislaw Rachwal

  DOI：10.1021/jo00113a043

  日期：1995.4

  N-Alkyl-N-aryl-1H-benzotriazole-1-methanamines 3, easily accessible from the condensation of anilines with formaldehyde and benzotriazole, undergo acid-catalyzed reactions with ethyl vinyl ether to give 1-allkyl-4-(benzotriazol-1-yl)-1,2,3,4-tetrahydroquinolines 10 and their benzotriazol-2-yl isomers 11. The reaction mechanism involves formation of 1-alkyl-4-ethoxy-1,2,3,4-tetrahydroquinolines 8 as isolable intermediates, followed by substitution of the ethoxy group in 8 with benzotriazole to produce 10 and 11, Treatment with Grignard reagents in toluene converts compounds 10 and 11 in good yield to 4-alkyl- or 4-aryltetrahydroquinolines 12. 2,3-Dihydrofuran and 3,4-dihydro-2H-pyran undergo similar reaction sequences giving tetrahydroquinolines additionally substituted by 3-(beta-hydroxyethyl) and 3-(gamma-hydroxypropyl) groups, respectively. The stereochemistry of 1,3,4-trisubstituted 1,2,3,4-tetrahydroquinolines is assigned on the basis of NOE methodology. An unusual reduction of the benzotriazolyl moiety to a phenylamino group is observed in the case of product 43 obtained from the reaction of 10-(benzotriazol-1-ylmethyl)-4H-phenothiazine with ethyl vinyl ether.