Using malononitrile as the raw material, a novel synthesis route of 2-amino-4,6-dimethoxypyrimidine(ADM) was put forward, in order to solve the instability in first step reaction of industrial synthesis. The influence...Using malononitrile as the raw material, a novel synthesis route of 2-amino-4,6-dimethoxypyrimidine(ADM) was put forward, in order to solve the instability in first step reaction of industrial synthesis. The influence of reactant ratio, temperature and time on product quality and yield was explored. The results showed that ADM was successfully prepared through acetyl chloride route, the yield was higher than that of industrial production process, and the process stability was good, with the product purity over 99%. Therefore, the new synthesis route is suitable for industrial production.展开更多
The complexes of hydrous copper chloride and copper nitrate with 2-amino-4,6-dimethylpyrimidine(ADMP) were prepared via reflux in alcohol. The compositions of the complexes were identified as Cu(ADMP) 2Cl 2·2H 2O...The complexes of hydrous copper chloride and copper nitrate with 2-amino-4,6-dimethylpyrimidine(ADMP) were prepared via reflux in alcohol. The compositions of the complexes were identified as Cu(ADMP) 2Cl 2·2H 2O(b) and Cu(ADMP)(NO 3) 2·H 2O(c) by chemical and elemental analyses. The complexes were characterized by IR, XPS, 1H NMR and TG-DTG techniques. The constant-volume combustion energies of ADMP and the complexes, Δ c E , were determined by a precise rotating-bomb calorimeter at 298 15 K. They were (-3664 53±1 18), (-4978 47±2 72) and (-1696 70±1 36) kJ/mol, respectively. Their standard enthalpies of combustion, Δ c H 0 m, and standard enthalpies of formation, Δ f H 0 m, were calculated to be (-3666 39±1 18), (-4977 23±2 72), (-1691 12±1 36) kJ/mol and (19 09±1 43), (-2041 80±3 29), (-2397 24±1 65) kJ/mol, respectively.展开更多
A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized b...A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized by using NMR spectrum and X-ray single-crystal diffraction. Unit cell parameters： space group P21/c, Z=4, a=8.7494（15）, b=27.518（5）, c=12.511（2）,β=109.323（16） , Z=4, V=2842.7（9）β3 , Dc=1.380 g/cm3 , F（000）=1224 and Mr=590.46. All the atoms are in the general positions.展开更多
文摘Using malononitrile as the raw material, a novel synthesis route of 2-amino-4,6-dimethoxypyrimidine(ADM) was put forward, in order to solve the instability in first step reaction of industrial synthesis. The influence of reactant ratio, temperature and time on product quality and yield was explored. The results showed that ADM was successfully prepared through acetyl chloride route, the yield was higher than that of industrial production process, and the process stability was good, with the product purity over 99%. Therefore, the new synthesis route is suitable for industrial production.
基金Supported by the Education Ministry Foundation of Shaanxi Province(No.HF0 130 4 )
文摘The complexes of hydrous copper chloride and copper nitrate with 2-amino-4,6-dimethylpyrimidine(ADMP) were prepared via reflux in alcohol. The compositions of the complexes were identified as Cu(ADMP) 2Cl 2·2H 2O(b) and Cu(ADMP)(NO 3) 2·H 2O(c) by chemical and elemental analyses. The complexes were characterized by IR, XPS, 1H NMR and TG-DTG techniques. The constant-volume combustion energies of ADMP and the complexes, Δ c E , were determined by a precise rotating-bomb calorimeter at 298 15 K. They were (-3664 53±1 18), (-4978 47±2 72) and (-1696 70±1 36) kJ/mol, respectively. Their standard enthalpies of combustion, Δ c H 0 m, and standard enthalpies of formation, Δ f H 0 m, were calculated to be (-3666 39±1 18), (-4977 23±2 72), (-1691 12±1 36) kJ/mol and (19 09±1 43), (-2041 80±3 29), (-2397 24±1 65) kJ/mol, respectively.
文摘A disubstituted triazine compound, namely, 2-amino-4,6-bis（diphenoxyl phosphorramide）-1,3,5-triazine, which is an inherent flame retardant monomer, was synthesized specifically, and its structure was characterized by using NMR spectrum and X-ray single-crystal diffraction. Unit cell parameters： space group P21/c, Z=4, a=8.7494（15）, b=27.518（5）, c=12.511（2）,β=109.323（16） , Z=4, V=2842.7（9）β3 , Dc=1.380 g/cm3 , F（000）=1224 and Mr=590.46. All the atoms are in the general positions.
