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101.
An efficient and convenient approach to synthesize of ethyl arylglyoxylates by solvent-free grinding was described. Eight ethyl arylglyoxylates had been synthesized by this method, this method provided several advantages such as little pollution, high yield, good selectivity, and simple workup procedure, their structures were confirmed by IR, 1HNMR. 相似文献
102.
YANG Xing-kun XU Kang-zhen ZHAO Feng-qi YANG Xin WANG Han SONG Ji-rong WANG Yao-yu .College of Chemistry Chemical Engineering Xinyang Normal University Xinyang P.R.China .Xi'an Modern Chemistry Research Institute Xi'an .Shaanxi Key Laboratory of Physico-inorganic Chemistry Northwest University Xi'an 《高等学校化学研究》2009,25(1)
A new compound,[(NH2)2C=NH2]+N(NO2)2-(GDN),was prepared by mixing ammonium dinitramide(ADN) and guanidine hydrochloride in water.The thermal behavior of GDN was studied under the non-isothermal conditions with DSC and TG/DTG methods.The apparent activation energy(E) and pre-exponential constant(A) of the exothermic decomposition stage of GDN were 118.75 kJ/mol and 1010.86 s-1,respectively.The critical temperature of the thermal explosion(Tb) of GDN was 164.09 ℃.The specific heat capacity of GDN was determin... 相似文献