Ten benzofuroxans and their derivatives have been systematically investigated by XPStechnique. A fairly good correlation between E<sub>b</sub><sup>*</sup> and q<sub>N</sub> on the- ...Ten benzofuroxans and their derivatives have been systematically investigated by XPStechnique. A fairly good correlation between E<sub>b</sub><sup>*</sup> and q<sub>N</sub> on the- NO<sub>2</sub> group has been wellestablished. Its validity as a criterion for checking intramolecular CT interaction within mol-ecules has been placed on a theoretical basis. In addition, XPS data can give an impetus for the determination of the conformationalanalysis of the coordinated N→O bond with the aid of the concept of pseudo - ’NO<sub>2</sub>’ group.展开更多
7-Azidoacetamido-4,6-dinitro-benzofuroxan has been synthesized from the starting materials of chloroacetyl chloride and m-chloroaniline, and has been characterized by elemental analysis, IR, 1H NMR and MS spectroscopi...7-Azidoacetamido-4,6-dinitro-benzofuroxan has been synthesized from the starting materials of chloroacetyl chloride and m-chloroaniline, and has been characterized by elemental analysis, IR, 1H NMR and MS spectroscopies. The title compound was obtained through the reactions of amidation, nitration, azidation and pyrolysis. Azido group was introduced into benzofuroxan derivative to give the energetic compound of high nitrogen content and high enthalpy of formation. It is hopeful that the title compound can be developed into new energetic material and energetic plastic additives.展开更多
A new series of quinoxaline 1,4-di-N-oxides were synthesized and evaluated for their antibacterial and antifungal activities. The best result was demonstrated by 3-amino-N-(4-methoxyphenyl)-2-quinoxalinecarboxamide 1,...A new series of quinoxaline 1,4-di-N-oxides were synthesized and evaluated for their antibacterial and antifungal activities. The best result was demonstrated by 3-amino-N-(4-methoxyphenyl)-2-quinoxalinecarboxamide 1,4-di-N-oxide 4e, MIC (0.24 μg/ml) against Aspergillus fumigatus, and (0.12 μg/ml) against Streptococcus pneumonia.展开更多
文摘Ten benzofuroxans and their derivatives have been systematically investigated by XPStechnique. A fairly good correlation between E<sub>b</sub><sup>*</sup> and q<sub>N</sub> on the- NO<sub>2</sub> group has been wellestablished. Its validity as a criterion for checking intramolecular CT interaction within mol-ecules has been placed on a theoretical basis. In addition, XPS data can give an impetus for the determination of the conformationalanalysis of the coordinated N→O bond with the aid of the concept of pseudo - ’NO<sub>2</sub>’ group.
文摘7-Azidoacetamido-4,6-dinitro-benzofuroxan has been synthesized from the starting materials of chloroacetyl chloride and m-chloroaniline, and has been characterized by elemental analysis, IR, 1H NMR and MS spectroscopies. The title compound was obtained through the reactions of amidation, nitration, azidation and pyrolysis. Azido group was introduced into benzofuroxan derivative to give the energetic compound of high nitrogen content and high enthalpy of formation. It is hopeful that the title compound can be developed into new energetic material and energetic plastic additives.
文摘A new series of quinoxaline 1,4-di-N-oxides were synthesized and evaluated for their antibacterial and antifungal activities. The best result was demonstrated by 3-amino-N-(4-methoxyphenyl)-2-quinoxalinecarboxamide 1,4-di-N-oxide 4e, MIC (0.24 μg/ml) against Aspergillus fumigatus, and (0.12 μg/ml) against Streptococcus pneumonia.
