共查询到18条相似文献,搜索用时 156 毫秒
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[5-(芳亚甲基氨基)-1,3,4-噻二唑-2-基]硫乙酰芳胺的合成及 生物活性研究 总被引:2,自引:0,他引:2
在K2CO3存在下利用聚乙二醇-400 (PEG-400)作相转移催化剂, 于固-液相转移催化条件下, 通过5-芳亚甲基氨 基-2-巯基-1,3,4-噻二唑与氯乙酰芳胺的硫烷基化反应, 合成了16个未见文献报道的[5-(芳亚甲基氨基)-1,3,4-噻二唑-2-基]硫乙酰芳胺衍生物. 经元素分析, FT-IR,1H NMR和13C NMR确证了其结构. 生物活性实验结果表明, 部分化合物对小麦幼苗的生长具有明显的植物生长调节活性, 并对枯草杆菌具有一定的抑制活性. 相似文献
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N-[5-(对三氟甲基苯基)-1,3,4-噻二唑-2-基]-N′-芳氧乙酰基硫脲的合成与生物活性 总被引:1,自引:1,他引:1
2-氨基-5-(对三氟甲基苯基)-1,3,4-噻二唑与芳氧乙酰基异硫氰酸酯反应,合成了10种新的芳氧乙酰基硫脲。其结构经1H NMR,IR和元素分析确证。初步的生物活性实验结果表明,部分化合物具有较好的植物生长调节活性。 相似文献
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芳醛-[5-(3,4,5-三甲氧基苯基)-1,3,4-噻二唑-2-巯基]-乙酰腙衍生物的合成及生物活性研究 总被引:3,自引:0,他引:3
采用活性基团拼接法, 以2-巯基-5-(3,4,5-三甲氧基苯基)-1,3,4-噻二唑为原料, 经硫醚化、肼解、腙化反应合成了8个芳醛-[5-(3,4,5-三甲氧基苯基)-1,3,4-噻二唑-2-巯基]-乙酰腙衍生物, 并经过元素分析, IR, 1H NMR, 13C NMR对其结构进行了确认. 初步生物活性测试表明, 部分化合物具有一定的抑菌生物活性. 相似文献
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Longjia Yan Minggao Deng Anchao Chen Yongliang Li Wanzheng Zhang Zhi-yun Du Chang-zhi Dong Bernard Meunier Huixiong Chen 《Tetrahedron letters》2019,60(20):1359-1362
An efficient and practical procedure was developed to prepare various N-pyrimidin[1,3,4]oxadiazole and thiadiazole scaffolds using a Buchwald-type coupling. The products of this reaction are otherwise difficult to access and could be used as building blocks in drug design. 相似文献
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The title compound N-(2,6-difluorobenzoyl)-N'-[5-(4-trifluoromethylphenyl)-1,3,4-thiadiazol-2-yl]urea(C17H9F5N4O2S, Mr = 428.34) has been synthesized by the reaction of 2-amino-5-(4-trifluoromethylphenyl)-l,3,4-thiadiazole with 2,6-difluorobenzoyl isocyanate, and its
crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/n with a = 10.7316(13), b = 10.5617(13), c = 16.037(2) (A), β =106.408(2)°, V= 1743.6(4) (A)3, Z = 4, Dc = 1.632 g/cm3, μ = 0.260 mm-1, F(000) = 864, the final R = 0.0599 and wR = 0.1420 for 3467 observed reflections with I > 2o(Ⅰ). The urea group, which adopts a planar configuration mediated by the intramolecular N-H…O hydrogen bond, is nearly coplanar with the thiadiazole and 4-trifluoromethylbenzene rings. The title compound was found to exhibit good fungicidal activity against Rhizoctonia solani and Botrytis cinerea. 相似文献
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以芳甲酰肼和对硝基苯甲酰氯为主要原料, 合成出了10个酰氨基硫脲化合物5a~5j, 其中有6个(5d, 5f~5j)为新化合物. 在无需任何酸性催化剂条件下, 将制得的酰氨基硫脲在DMF中加热回流直接脱水关环合成出了9个2-芳基-5-(4-硝基苯甲酰氨基)-1,3,4-噻二唑化合物6a~6i, 其中7个(6b~6d, 6f~6i)为新化合物. 利用IR和1H NMR证明了化合物5存在两种异构体. 目标产物的结构通过IR, 1H NMR和元素分析进行了表征. 相似文献
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Xi-Cun Wang Sheng-Qing Wang Xiao-Mei Ding Xue-Fei Chen 《Phosphorus, sulfur, and silicon and the related elements》2013,188(8):1788-1795
Fifteen 2-(5-(aryloxymethyl)-1,3,4-thiadiazol-2-ylthio)-N-arylacetamides were efficiently synthesized from the reaction of 2-chloro-N-arylacetamide with 5-(aryloxymethyl)-1,3,4-thiadiazole-2-thiol under solvent-free conditions at room temperature via grinding. The key advantages of the method are the short reaction time, high yields, simple workup, and environmentally friendly conditions compared to conventional heating. 相似文献
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It has been shown by1H NMR spectroscopy that hydrazones obtained by the condensation of hydrazides of [5-4-pyridyl)-1,3,4-oxadiazol-2-ylthio] acetic or 2-[5-(2-pyridyl)-1,3,4-oxadiazol-2-ylthio]propionic acids with aldehydes, ketones, and -dicarbonyl compounds exist in DMSO solution as a mixture of stereoisomeric forms.Institute of Chemistry, Vilnius LT-2600, Lithuania. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 966–971, July, 2000. 相似文献