New and Facile Synthesis of Substituted Pyrrole, Pyridine, Pyrazolo[4,3-b] Pyridine, Pyrano[3,2-c] Quinoline, Napthopyran, Naphthodipyran and Coumarin Derivatives

• 作者: A. A. Elagamey F. M. A. El-Taweel
• 来源期刊: 有机化学国际期刊(英文)
• 学科: 化学
• 关键词: PYRROLE PYRIDINE Pyrazolo[4 3-b] PYRIDINE Pyrano[3 2-c] QUINOLINE NAPHTHOPYRAN Naphthodipyrans and Coumarin
• 年，卷（期）: yjhxgjqkyw_2013,（1）
• 页码范围: 58-70
• 页数: 13页
• 分类号: O6

摘要

Several new pyrazolo[4,3-b] pyridines 7a, b were prepared by reacting arylidenemalononitriles 1a, c or 1i, j with 4-nitrosoantipyrine 4. Reacting 1a, b, d with 4-azidomethylcarbonylantipyrine 8 give 2-aminopyrrole 14. Pyrano[3,2-c] quinolines 20a, b and 23 were obtained by reacting 4-hydroxyquinoline 15 with 1g, h, 2b respectively. Reaction of 1 with naphthalenediols 24, 27 and 29 yield naphthodipyrans 26a, b, 28a, b and 30a,<