Liu Wan-yuna
2010
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Journal
Chemical Reagents
Abstract
In this paper,1,3-bis[3-(2-thiophenyl)-3-oxopropan-oyl]benzene was synthesized from dimethyl isophthalate and 2-acetyl thiophene.The target product was a yellow needle-like crystal,with its yield reaching 52%.Its molecular structure was characterized by NMR,MS,IR,UV-Vis spectroscopy and elemental analysis.The thermal properties of 1,3-bis[3-(2-thiophenyl)-3-oxopropan-oyl]benzene were studied based on the TG-DTG and DSC-DDSC analyses in nitrogen.In a temperature range between 230~445 ℃,a mass loss of 80.30% was observed.The last solid residue was considered generally as the remnants of benzene because of incomplete combustion.The maximum peak at 167 ℃ in DTG analysis was observed by exothermic decomposition reaction.The maximum peaks at 163 ℃,179 ℃ and 352 ℃ in DSC were observed by endothermic reaction,respectively.