Synthesis and anti‐inflammatory activity of diversified heterocyclic systems
作者:Ahmed Bari、Daniel Grenier、Jabrane Azelmat、Saeed Ali Syed、Abdulrahman M. Al‐Obaid、Eric C. Hosten
DOI:10.1111/cbdd.13576
日期:2019.10
In continuation with our research program on the development of novel bioactive molecules, we report herein the design and synthesis of a series of diversified heterocycles (4-22). The synthesized compounds were evaluated for their anti-inflammatoryactivity. The chemical structures of the newly synthesized compounds have been confirmed by NMR, FTIR, and microanalysis.
Palladium(II) complexes of 4-formylantipyrine N(3)-substituted thiosemicarbazones: first example of X-ray crystal structure and description of bonding properties
作者:Paras Nath Yadav、Mavroudis A. Demertzis、Dimitra Kovala-Demertzi、Stavroula Skoulika、Douglas X. West
DOI:10.1016/s0020-1693(03)00087-2
日期:2003.6
thiosemicarbazide, N(3)-methylthiosemicarbazide and N(3)-ethylthiosemicarbazide produced the expected thiosemicarbazones, 1, 2 and 3. The three thiosemicarbazones were then reacted with K2PdCl4 to produce [Pd(NS)2] complexes, 4, 5, and 6, respectively, with coordination by the imine nitrogen and thiolate sulfur of the anionic thiosemicarbazone moiety. The thiosemicarbazones and their palladiumcomplexes have been
4- formylantipyrine与氨基硫脲,反应Ñ(3)-methylthiosemicarbazide和Ñ(3)-ethylthiosemicarbazide产生预期的缩氨基硫脲,1,2和3。然后这三个缩氨基硫脲中具有K个反应2的PdCl 4,以产生[钯(NS)2 ]配合物,4,5,和6,分别与由亚胺氮和阴离子缩氨基硫脲基团的硫醇盐硫协调。硫半脲及其钯配合物的特征在于光谱IR,UV-Vis和1 H,1313 C NMR和电化学技术。已经获得了6的晶体结构,并且发现其具有两个二齿配体的反式排列高度对称。
Eco-Friendly Synthesis of Some Thiosemicarbazones and Their Applications as Intermediates for 5-Arylazothiazole Disperse Dyes
作者:Hatem Gaffer、Mohamed Khalifa
DOI:10.3390/molecules201219820
日期:——
The solid-solid reactions of thiosemicarbazide with 4-formylantipyrine, 2-acetylpyrrole and camphor were performed to afford the thiosemicarbazones 1–3 which underwent hetero-cyclization with phenacyl bromide to furnish the corresponding thiazole derivatives 4–6. The yields of the reactions are quantitative in all cases and the products do not require further purification. A series of 5-arylazo-2-(substituted ylidene-hydrazinyl)-thiazole dyes 7–9 was then prepared by diazo coupling of thiazole derivatives 4–6 with several diazonium chlorides. The synthesized dyes were applied as disperse dyes for dyeing polyester fabric. The dyed fabrics exhibit good washing, perspiration, sublimation and light fastness properties, with little variation in their moderate to good rubbing fastness.