微波辐射一步法合成吡喃和吡喃[2, 3-c]吡唑衍生物 |
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引用本文: | 周建峰,屠树江,高原,嵇明.微波辐射一步法合成吡喃和吡喃[2, 3-c]吡唑衍生物[J].有机化学,2001,21(10):742-745. |
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作者姓名: | 周建峰 屠树江 高原 嵇明 |
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作者单位: | 1. 淮阴师范学院化学系, 2. 徐州师范大学化学系, 3. 深圳大学师范学院化生系, |
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摘 要: | 芳醛、丙二腈与5,5-二甲基-1,3-环己二酮或3-甲基-1-苯基-2-吡唑啉-5-酮在乙醇溶剂中用哌啶作催化剂,经微波辐射一步合成了2-氨基-3-氰基-4-芳基-7,7-二甲基-5-氧代-5,6,7,8-四氢苯并吡喃和6-氨基-5-氰基-4-芳基-1,4-二氢吡喃2,3-c]吡唑,反应在2~12min内完成,产率53%~91%。
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关 键 词: | 微波辐射 吡喃P 环己二酮 吡唑啉P 丙二腈 哌啶 吡唑P 苯并吡喃P 一步法(化工) |
修稿时间: | 2001年3月23日 |
One pot synthesis of pyrans and pyrano[2, 3-c] pyrazole derivatives under microwave irradiation |
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Institution: | Xuzhou Teachers Coll, Dept Chem.Xuzhou(221009);Shenzhen. |
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Abstract: | 2-Amino-3-cycano-4-aryl-7, 7-dimethyl-5, 6, 7, 8- tetrehydrobenzob] pyrans and 6-amino-5-cyano-4-aryl- 1, 4-dihydropyrano2, 3-c]pyrazoles were synthesized by one-step reaction of aromatic aldehydes, malononitrile and dimedone or 3-methyl-1-phenyl-2-pyrazolin-5-one usig piperidine as catalyst under microwave irradiation. The reactions were completed in 2~12 min in good yields. |
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Keywords: | MICROWAVE RADIATION PYRANE P CYCLOHEXANEDIONE PYRAZOLINE P PROPANEDINITRILE PIPERIDINE PYRAZOLE P BENZOPYRAN P ONE-STEP PROCESS |
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