共查询到17条相似文献,搜索用时 110 毫秒
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以具有热敏性能的N-异丙基丙烯酰胺及其衍生物的共聚物作载体,利用温度为相分离的控制手段,在水介质中合成了2-氨基-3-氰基-4-取代苯基-5-甲氧羰基-4H-喃化合物,其结构经^1H NMR,IR和元素分析确证。 相似文献
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A series of novel 2-amino-4H-pyran derivatives have been synthesized via a three-component reaction of α,β-unsaturated ketone derivatives, malononitrile, aldehydes in excellent yields, using DBU as a catalyst and ethanol as a cheap, safe, and environmentally benign solvent under mild conditions. Their antitumor activity was evaluated in three human tumor cell lines, including human colon cancer (HCT116), human cervical cancer (Hela). and non-small cell lung cancer (H1975). 相似文献
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Tret'yakova E. V. Flekhter O. B. Galin F. Z. Spirikhin L. V. Tolstikov G. A. 《Russian Journal of Organic Chemistry》2003,39(12):1738-1740
Condensation of cyclopentanonopimaric acid with malononitrile in the presence of p-methoxybenzaldehyde or elemental sulfur gave the corresponding fused 2-amino-3-cyano-4-(4-methoxyphenyl)-4H-pyrano and 2-amino-3-cyanothieno derivatives. 相似文献
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A. V. Samet A. M. Shestopalov M. I. Struchkova V. V. Semenov V. N. Nesterov Yu. T. Struchkov 《Russian Chemical Bulletin》1996,45(8):1945-1951
Previously unknown 5-azolylpyrans were obtained by reactions ofN-acetonyl- andN-phenacylimidazoles, -triazoles, and -tetrazoles with arylmethylenemalononitriles. The structure of 2-amino-3-cyano-6-methyl-5-(5-nitrotetrazol-2-yl)-4-phenyl-4H-pyran was established by X-ray structural analysis.Deceased.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 2050–2055, August, 1996. 相似文献
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The synthesis of 2-amino-3-aryl-5-substituted thiophenes as anti-inflammatory agents catalyzed by KF-Al2O3 under microwave irradiation is reported. 相似文献
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Yogesh B. Wagh Yogesh A. Tayade Swapnil A. Padvi Bhupesh S. Patil Nilesh B. Patil Dipak S. Dalal 《中国化学快报》2015,26(10):1273-1277
A rapid, one-pot and highly efficient protocol for the synthesis of pharmaceutically interesting functionalized 2-amino-3-cyano-4H-pyran and spirooxindole derivatives has been developed using commercially available Cs F as a catalyst in the reaction of malononitrile and aryl aldehydes or isatins with 1,3-cyclohexanediones. The major advantages of this methodology are excellent yield at ambient temperature, very short reaction time(5–10 min), and use of an inexpensive catalyst. 相似文献