A novel polyethylene glycol （PEG）-200-based dicationic acidic ionic liquid （PEG200-DAIL） was used to synthesize HMX from DPT by nitrolysis with N2O5. It was found that either N2O5 or PEGzoo-DAIL could improve the ...A novel polyethylene glycol （PEG）-200-based dicationic acidic ionic liquid （PEG200-DAIL） was used to synthesize HMX from DPT by nitrolysis with N2O5. It was found that either N2O5 or PEGzoo-DAIL could improve the yield. Furthermore, the combined use of PEG200-DAIL and N2O5 could increase the yield of HMX to 64% with the used quantity of HNO3 decreased dramatically.展开更多
The effect of metallic ions on the nitrolysis of DAPT [3,7-diacetyl-1,3,5,7-tetraazabicyclo（3.3.1）nonane] and HA （hexamine） was investigated by experimental and theoretical approaches. The combinatorial reagent, M...The effect of metallic ions on the nitrolysis of DAPT [3,7-diacetyl-1,3,5,7-tetraazabicyclo（3.3.1）nonane] and HA （hexamine） was investigated by experimental and theoretical approaches. The combinatorial reagent, M（NO3）n/Ac20/NH4NO3 （M=Mg2＋, Cu2＋, Pb2＋, Bi3＋, Fe3＋ and Zr4＋）, was found to be efficient in the experiment of the nitrolysis of DAPT. A key intermediate during the nitrolysis of DAPT was detected by 1H NMR. The formation mechanism of the intermediate was proposed and analyzed. Some discrepant results for the nitrolysis of DAPT and HA catalyzed by different metallic nitrates were explained based on hard-soft and acid-base principle and stabilized energy of ion-complex. From the latter point of view, some cations with high polarizable ligands, e.g., O802CF3-, （CF3SO2）2N-, and （C4F9SO2）2N-, can increase the yields. Two newly designed catalysts, Cu[（CF3SO2）2N]2 and Cu[（C4F9SO2）2N]2, were tested to be highly efficient.展开更多
基金support from National Basic Research(973) Program of China(No.613740101)
文摘A novel polyethylene glycol （PEG）-200-based dicationic acidic ionic liquid （PEG200-DAIL） was used to synthesize HMX from DPT by nitrolysis with N2O5. It was found that either N2O5 or PEGzoo-DAIL could improve the yield. Furthermore, the combined use of PEG200-DAIL and N2O5 could increase the yield of HMX to 64% with the used quantity of HNO3 decreased dramatically.
文摘The effect of metallic ions on the nitrolysis of DAPT [3,7-diacetyl-1,3,5,7-tetraazabicyclo（3.3.1）nonane] and HA （hexamine） was investigated by experimental and theoretical approaches. The combinatorial reagent, M（NO3）n/Ac20/NH4NO3 （M=Mg2＋, Cu2＋, Pb2＋, Bi3＋, Fe3＋ and Zr4＋）, was found to be efficient in the experiment of the nitrolysis of DAPT. A key intermediate during the nitrolysis of DAPT was detected by 1H NMR. The formation mechanism of the intermediate was proposed and analyzed. Some discrepant results for the nitrolysis of DAPT and HA catalyzed by different metallic nitrates were explained based on hard-soft and acid-base principle and stabilized energy of ion-complex. From the latter point of view, some cations with high polarizable ligands, e.g., O802CF3-, （CF3SO2）2N-, and （C4F9SO2）2N-, can increase the yields. Two newly designed catalysts, Cu[（CF3SO2）2N]2 and Cu[（C4F9SO2）2N]2, were tested to be highly efficient.
