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无溶剂条件下微波辐射合成2-氨基噻唑衍生物 总被引:8,自引:0,他引:8
在无溶剂条件下, 用微波辐射法以碘、酮和硫脲为原料合成了9个2-氨基噻唑衍生物. 利用正交法优化了微波促进此类环化反应的最佳条件, 提出了微波条件下碘催化环化合成2-氨基噻唑衍生物可能的反应机理. 相似文献
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JinXianWANG XiaoNingSHI KeHuWANG XiuQinMEN 《中国化学快报》2004,15(3):284-285
An efficient and convenient synthesis of 3, 5, 7-triaryl-4H-1, 2-diazepine from 2, 4,6-triarylpyrylium salts and hydrazine in water under microwave irradiation is reported. The same reaction can be conducted using 2, 4, 6-triarylthiopyrylium salts and hydrazine. 相似文献
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Venkateshwarlu Jetti Ramakanth Pagadala Jyotsna S. Meshram Himani N. Chopde Latha Malladi 《Journal of heterocyclic chemistry》2013,50(Z1):E160-E165
In an attempt to synthesize antibacterial agents effective against gram‐positive and gram‐negative bacteria, the efficient synthesis of novel bis‐azetidinones ( 3a–j ) has been established. Thus, cycloaddition reaction of substituted bis‐imines with chloroacetylchloride under microwave irradiation in the presence of zeolite yielded bis‐azetidinones ( 3a–j ). Structures of the synthesized compounds have been elucidated on the basis of their elemental analysis and spectral data (IR, 1H‐NMR, 13C‐NMR, and mass spectra). The synthesized bis‐azetidinones were screened for their antibacterial activity against five microorganisms: Bacillus subtilis, Proteus vulgaris, Staphylococcus aureus, Klebsiella pneumoniae, and Escherichia coli. They were found to exhibit good to moderate antibacterial activity. 相似文献
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在微波辐射无溶剂条件下快速、高产率地合成了2,4,6-三芳基吡啶四氟硼酸盐化合物, 并对其进行核磁共振、红外光谱、元素分析表征. 同时得到了化合物4f的晶体, 对其进行了X单晶射线衍射表征. 结果表明, 该晶体属正交晶系, 空间群Pbca, a=2.1050(2) nm, b=1.64360(17) nm, c=2.9209(3) nm, α=β=90.00°, γ=90.00°, Dc=1.276 g•cm-3, V=10.1057(17) nm-3, Z=16. 相似文献
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A facile and efficient synthesis of fluorine‐containing polyhydrobenzoacridines was accomplished by a three‐component coupling of fluorinated aldehyde, α‐naphthylamine, and 1,3‐cyclohexanedione or dimedone under microwave irradiation and solvent‐free conditions without catalyst. All new compounds were obtained in moderate to good yields and characterized by standard spectroscopic methods. 相似文献
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微波辐射和加热条件下的无催化剂无溶剂Knoevenagel缩合反应 总被引:12,自引:0,他引:12
芳香醛和丙二腈在无催化剂无溶剂存在下在微波辐射或加热条件下可以发生Knoevenagel缩合反应,反应产率良好. 相似文献
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