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摘要 通过膦亚胺(2)与芳基异氰酸酯的aza-Wittig反应得碳二亚胺(3),再应用3与亲核试剂的成环反应制得了8个2-氨基取代咪唑啉酮的新衍生物5a～5h。探讨了碳二亚胺3与不同亲核试剂反应的活性。
摘要 应用烯基膦亚胺（1）与芳基异氰酸酯的氮杂Wittig反应，得到的碳二亚胺2再 与醇在醇钠催化下反应，合成了新的2-烷氧基-4H-咪唑啉-4-酮衍生物（3），探讨 了成环反应的条件以及所合成的新型杂环化合物的杀菌活性，结果表明部分化合物 表现出较好的抑菌活性，其中以3b活性最好，在50 mg/L浓度时，对水稻纹枯菌和 苹果轮纹菌的抑制率达81%以上。
摘要 本文以3-乙醛基-4-羟基-6-溴喹啉为原料, 经与芳香醛缩合得查尔酮类化合物, 而后环合, 氧化生成2-芳基-4-氧-4H吡喃酮[3,3,-c]-9-溴喹啉类化合物。本文合成了七个查尔酮类化合物和七个氮杂黄酮类化合物。
2-{5-[(1H-1,2,4-三唑-1-基)甲基]-4-苯基-4H-1,2,4-三唑-3-硫基}-1-芳基乙酮类化合物的合成、表征及生物活性测试
三唑 合成 生物活性 晶体结构
2007/12/19
摘要 通过α-卤代芳基乙酮和5-[(1H-1,2,4-三唑-1-基)甲基]-4-苯基-2H-1,2,4-三唑-3(4H)-硫酮反应, 合成了11个新的2-{5-[(1H-1,2,4-三唑-1-基)甲基]-4-苯基-4H-1,2,4-三唑-3-硫基}-1-芳基乙酮类化合物. 其结构经元素分析, IR, 1H NMR等确证, 并用X射线单晶衍射测定了化合物6f的晶体结构. 生物活性测试结果表明, 部分...
芳醛、丙二腈与6-甲基-4-羟基-2-吡喃酮在微波辐射下, 一步反应得到一系列2-氨基-7-甲基-4-芳基-5-氧代-4H,5H-吡喃并[4,3-b]吡喃-3-腈, 该反应时间短、产率较高、环境友好、后处理简单. 产物的结构经红外光谱、核磁共振谱和元素分析表征, 产物4g的结构经单晶X射线衍射进一步确证; 并对反应过程提出了可能的机理.
Solid Phase Synthesis o f 4H-pyimiso[2,1-b] benzothiazol -4-ones from Resin-Bound Cyclic Malonic
2007/7/28
期刊信息
篇名
Solid Phase Synthesis o f 4H-pyimiso[2,1-b] benzothiazol -4-ones from Resin-Bound Cyclic Malonic
语种
英文
撰写或编译
作者
Liu Z-X,Wu L-L,Huang X
第一作者单位
刊物名称
Chinese Chem.lett
页面
2003, 14(3), 247-248
出版日...
Synthesis and Anticancer Evaluation of Some New Unsymmetrical 3,5-Diaryl-4H-1,2,4-Triazole Derivatives
4H-1,2,4-Triazoles 4-Amino-4H-1,2,4-triazoles 4-Arylidenamino-4H-1,2,4-triazoles 4-Arylmethylenamino-4H-1,2,4-triazoles Synthesis Anticancer activity
2010/4/19
A series of 4-arylidenamino-4H-1,2,4-triazole derivatives (3-11) were synthesized from the treatment of 4-amino-4H-1,2,4-triazoles (2) with certain aldehydes. Compounds 3-11 were reduced with NaBH4 to...
Synthesis and Evaluation of Antimicrobial Activity of New 3-Hydroxy-6-methyl-4-oxo-4H-pyran-2- carboxamide Derivatives
Chlorokojic acid amide derivatives of pyranone antibacterial activity antifungal activity
2010/4/21
The synthesis of a range of 3-hydroxy-4-oxo-4H-pyran-2- carboxamide with antimicrobial activity is described. Amide derivatives of pyranone were synthesised using TBTU [2-(1H-benzotriazol-1-yl)-1,1,3,...
Synthesis and Characterization of Some 3-alkyl-4-amino-5-cyanomethyl-4H-1,2,4-triazoles
1,2,4-triazole cyanoacet hydrazide acylhydrazine cyclization
2010/4/22
The preparation and characterization of some 3-alkyl-4-amino-5-cyanomethyl-4H-1,2,4-triazoles with active methylene groups are described and their structural properties using NMR and IR spectra and el...
Reactions of 4-Amino-4,5-Dihydro-1H-1,2,4-Triazol-5-ones and 4-Amino-4H-1,2,4-Triazoles with Some Carboxylic Acid Anhydrides
Reactions 4-Amino-4,5-Dihydro-1H-1,2,4-Triazol-5-ones 4-Amino-4H-1,2,4-Triazoles Some Carboxylic Acid Anhydrides
2010/7/1
3-Alkyl(Aryl)-4-tetrachlorophthalimido-4,5-dihydro-1H-1,2,4-triazol-5-ones (2) and 3-alkyl(aryl)-4-(1,8-naphthalimido)-4,5-dihydro-1H-1,2,4-triazol-5-ones (3) were synthesized from the reactions of 3-...