Synthesis and antifungal activity of novel 3,6-diaryl-5<i>H</i>-[1,2,4]triazolo[4,3-<i>b</i>][1,2,4]triazepines
作者:Monika Gupta
DOI:10.1002/jhet.5570440508
日期:2007.9
presence of catalytic amount of p-TsOH and N,N-dimethylformamide as an energy transfer medium under microwave irradiation and as solvent with oil-bath heating at 80 °C affords novel3,6-diaryl-5H-[1,2,4]triazolo[4,3-b]-1,2,4]triazepines 8. The structures of the synthesized compounds were established on the basis of 1H NMR, IR, mass spectral data and elemental analysis.
在催化量的p- TsOH和作为能量转移介质的N,N-二甲基甲酰胺的存在下,在微波辐射下用β-氯肉桂醛7处理5-芳基-3,4-二氨基-1,2,4-三唑5作为溶剂,在80°C的油浴中加热,可提供新颖的3,6-二芳基-5 H- [1,2,4]三唑并[4,3- b ] -1,2,4 ]三氮杂s 8。在1 H NMR,IR,质谱数据和元素分析的基础上建立了合成化合物的结构。
Supramolecular synthons in fluorinated and nitrogen-rich ortho-diaminotriazoles
作者:Roberto Centore、Antonio Carella、Sandra Fusco
DOI:10.1007/s11224-011-9805-0
日期:2011.10
5-Substituted 3,4-diamino-1,2,4-triazoles can be obtained in moderate to good yields in a one-pot reaction starting from a carboxylic acid and dimethylaminoguanidine monohydrochloride in polyphosphoric acid (PPA) at 120 °C. Several triazoles and bistriazoles have been prepared in this way, with substituents ranging from alkyl to aryl, including perfluoroaryl or perfluoroalkyl substituents. The crystal structure analysis of three perfluorinated diaminotriazoles has evidenced a most stable $$ R_2}^2} (8) $$ H bonding synthon, involving the amino CNH2 donor and the adjacent nitrogen ring acceptor; additionally, two new synthons consisting of chains of rings have been identified. The relevance of the short F⋯F intermolecular contacts found in the structures is also discussed.
5-取代的3,4-二氨基-1,2,4-三氮唑可以通过在120 °C的聚磷酸(PPA)中,从羧酸和单氢氯化物二甲基氨基脲进行一锅反应,以中等到良好的产率获得。多种三氮唑和双三氮唑已通过这种方法制备,取代基范围从烷基到芳基,包括全氟芳基或全氟烷基取代基。对三种全氟化二氨基三氮唑的晶体结构分析显示,存在一种最稳定的 $$ R_2}^2} (8) $$ H 键合合成子,涉及氨基CNH2供体和相邻的氮环受体;此外,还确定了由环链组成的两个新合成子。文中还讨论了在这些结构中发现的短F⋯F分子间接触的重要性。
Efficient three-component synthesis of N-alkyl-3,6-diaryl-[1,2,4]triazolo[4,3-b][1,2,4]triazin-7-amines under solvent-free condition
A simple, efficient and environment-friendly approach is described for the synthesis of N-alkyl-3,6-diaryl[1,2,4]triazolo[4,3-b][1,2,4]triazin-7-amines based on three-component reaction between 5-aryl-4H-1,2,4triazole-3,4-diamine, isocyanide and aldeyhde under solvent-free condition. The products are obtained in moderate to good yields and are in a state of high purity.
Efficient and novel one-pot synthesis of antifungal active 1-substituted-8-aryl-3-alkyl/aryl-4H-pyrazolo[4,5-f][1,2,4]triazolo[4,3-b][1,2,4]triazepines using solid support
作者:Monika Gupta、Satya Paul、Rajive Gupta
DOI:10.1016/j.ejmech.2010.11.043
日期:2011.2
A simple, efficient and environment-friendly procedure is developed for the synthesis of 1-substitued-8-aryl-3-alkyl/aryl-4H-pyrazolo[4,5-f][1,2,4]triazolo[4,3-b][1,2,4]triazepines in the presence of N,N-dimethylformamide as an energy transfer medium, p-TsOH as catalyst and basic alumina as solid support under microwave irradiation. The products are obtained in moderate to good yields and are in a
开发了一种简单,有效且环境友好的方法,用于合成1-取代的8-芳基-3-烷基/芳基-4 H-吡唑并[4,5- f ] [1,2,4]三唑并[4] ,3- b ] [1,2,4]在存在triazepines ñ,ñ二甲基甲酰胺作为能量传递介质,p -TsOH作为催化剂和碱性氧化铝微波辐射下固体支持物。以中等至良好的产率获得产物并且处于高纯度状态。此外,已经对标题化合物的抗真菌活性进行了筛选。
Gupta, Monika; Paul, Satya; Gupta, Rajive, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010, vol. 49, # 4, p. 475 - 481