共查询到19条相似文献,搜索用时 171 毫秒
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1-芳酰基-4-(5-芳基-2-呋喃甲酰基)氨基硫脲衍生物的合成及其生物活性 总被引:11,自引:0,他引:11
酰胺基硫脲;芳基酰肼;1-芳酰基-4-(5-芳基-2-呋喃甲酰基)氨基硫脲衍生物的合成及其生物活性 相似文献
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微波促进下3-(2-苯并呋喃基)-4-氨基-5-巯基-1,2,4-三唑 总被引:1,自引:0,他引:1
微波辐射条件下, 首先由2-苯并呋喃甲酰肼依次与二硫化碳和水合肼反应合成3-(2-苯并呋喃基)-4-氨基-5-巯基- 1,2,4-三唑, 进一步在微波辐射条件下由4-氨基-5-巯基-1,2,4-三唑分别与芳甲酸/芳氧基乙酸、α-溴代苯乙酮及芳醛反应以较高产率制得了相应的1,2,4-三唑并[3,4-b]-1,3,4-噻二唑、1,2,4-三唑并[3,4-b]-1,3,4-噻二嗪及4-芳亚甲基亚胺基-5-巯基-1,2,4-三唑. 产物结构经IR, 1H NMR, MS及元素分析进行了表征. 相似文献
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1-芳酰基-4-取代吡唑甲酰基氨基硫脲和环化产物的合成及生物活性 总被引:28,自引:0,他引:28
利用1-苯基-3-甲基-5-氯-4-吡唑甲酰基异硫氰酸酯(Ⅰ)与芳酰肼(Ⅱ)的加成反应合成了系列新的酰胺基硫脲衍生物(Ⅲ),并将Ⅲ在酸性条件下进行环化反应得到2-取代吡唑甲酰基氨基-5-芳基-1,3,4-噻二唑(Ⅳ).生物活性测定结果表明部分化合物Ⅲ和Ⅳ具有较好的除草活性. 相似文献
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以3,5-二取代异噁唑-4-甲酰肼为基本原料制备关键中间体1-(3-对甲氧基苯基-5-甲基异噁唑-4-基)-4-芳基氨基硫脲(3a~3c);3在不同条件下经关环反应制得含有3,5-二取代异噁唑的2-芳氨基噻二唑(4a~4c),2-芳氨基噁二唑(5a~5c)和3-[3’-(4″-甲氧基苯基)-5’-甲基-异噁唑-4’-基)-4-芳基-1,2,4-三唑-5-硫酮(6a~6c);6与碘甲(乙)烷反应合成了4-芳基-5-[3’-(4″-甲氧基苯基)-5’-甲基异噁唑-4’-基]-3-甲(乙)硫基-1,2,4-三唑(7a~8c),其结构经1H NMR,IR,MS和元素分析表征,其中4,5,7和8未见文献报道。 相似文献
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利用1-[5’-氨基-1’-(4”-氯苯基)-1’,2’,3’-三唑-4’-甲酰基]-4-芳基氨基硫脲在汞盐Hg(OAc)_2-HOAc中加热缩合,制得11种新的2-芳胺基-5-[5’-氨基-1’-(4”-氯苯基)-1’,2’,3’-三唑-4’-基]-1,3,4-噁二唑。所有化合物的结构经元素分析,IR、MS以及~1HNMR确认。选择代表物作生测试验,结果表明,2b,2k在MIC3.1mg/L时,对大肠杆菌及金黄色葡萄球菌繁殖有明显抑制。 相似文献
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3-(3-Aryl-4-formyl-1-pyrazolyl)propionic acids are converted by Knoevenagel condensation under conditions of microwave activation
into 3-[3-aryl-1-(2-ethoxycarbonyl)-4-pyrazolyl]acrylic acids. Reduction of the latter with hydrazine hydrate in the presence
of Raney nickel gives 3-[3-aryl-1-(2-ethoxycarbonyl)-4-pyrazolyl]propionic acids.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 686–690, May, 2006. 相似文献
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Subramanian Vedhanarayanan Karthikeyan K.K. Balasubramanian 《Tetrahedron letters》2007,48(35):6133-6136
A series of new substituted 1-(2-arylmethyl-5-aryl-3-thienyl)pyrrolidines and piperidines were synthesised by one-pot, three-component tandem reactions of 5-aryldihydro-3(2H)-thiophenone, aromatic aldehydes and pyrrolidine/piperidine under solvent-free microwave irradiation. This facile transformation occurs presumably via a tandem enamine formation-carbonyl addition-dehydration-isomerisation sequence. 相似文献
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Prakasam Thirumurugan 《Tetrahedron letters》2009,50(28):4145-3867
A series of 4-aryl-6-(1H-indol-3-yl)-2,2-bipyridine-5-carbonitrile derivatives were synthesized via a one-pot multi-component reaction of aromatic aldehydes, 3-(cyanoacetyl)indole and 2-acetyl pyridine in ammonium acetate by conventional heating and microwave irradiation under solvent-free condition. Also a series of 6,6′-di(1H-indol-3-yl)-4,4′-diaryl-2,2′-bipyridine-5,5′-dicarbonitrile derivatives were synthesized using cinnamils, 3-(cyanoacetyl)indole and ammonium acetate. The methodology affords high yields of product at short reaction time. 相似文献