Synthesis and thermal properties of arylazo pyridone dyes
作者:Slavica J. Porobić、Aleksandar D. Krstić、Dragana J. Jovanović、Jelena M. Lađarević、Đurica B. Katnić、Dušan Ž. Mijin、Milena Marinović-Cincović
DOI:10.1016/j.dyepig.2019.107602
日期:2019.11
analysis techniques. The results obtained with thermogravimetric analysis (TGA) – derivativethermogravimetry (DTG) and differentialthermal analysis (DTA) were combined with GC-mass spectral fragmentation to obtain thermal decomposition mechanism. Non-isothermal kinetics were monitored by application of TGA-DTG-DTA. For Kinetic behavior of the investigated dyes during their degradation in an inert
5-(4-取代的苯基偶氮)-3-酰胺基-6-羟基-4-甲基-2-吡啶酮和5-(4-取代的苯基偶氮)-3-氰基-6-羟基-4-甲基-2-吡啶酮的热降解特性研究了在重氮组分对位的吸电子和给电子取代基方面不同的吡啶酮染料。合成的化合物的结构已通过1 H NMR确证,13C NMR,FTIR,UV-Vis和XRD分析技术。将热重分析(TGA)–导数热重分析(DTG)和差示热分析(DTA)获得的结果与GC-质谱谱图结合起来,得出热分解机理。通过应用TGA-DTG-DTA监测非等温动力学。对于所研究的染料在惰性气氛中降解过程中的动力学行为,采用了基辛格,小泽,弗林-沃尔-小泽(FWO)和基辛格-赤平-Sunose(KAS)等转化(无模型)方法。发现所研究染料的不同热稳定性是其不同化学结构(包括各种取代基)的结果。
Osman, Ahmed Ibrahim; El-Taweel, Fathy Mohamed Abdel Aziz; El-Awaad, Samar Mohamed Hilmy, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1998, vol. 37, # 3-4, p. 399 - 403
作者:Osman, Ahmed Ibrahim、El-Taweel, Fathy Mohamed Abdel Aziz、El-Awaad, Samar Mohamed Hilmy、Elagamey, Abdel Ghani Ali
DOI:——
日期:——
Studies on Polyfunctionalised Heteroaromatics: Synthesis of Several New Cinnoline and Pyrido[3,4-c]pyridazine Derivatives
作者:Magda A. Barsy
DOI:10.1002/jccs.200000131
日期:2000.8
One-pot reaction of ethyl 2-aryhydrazono-3-oxobutyrates with cyanoacetamide afforded pyridazine and pyridine derivatives, which were found to be excellent precursors for the synthesis of different cinnolines and pyrido[3,4-c]pyridazines, respectively.