摘要
由1,4-二硝基咪唑(1,4-DNI)重排为2,4-二硝基咪唑(2,4-DNI),以微波加热代替常规加热,可在一定程度提高得率,并可将重排时间由4～50h缩短为10min。研究了加热用微波功率、加热时间、溶剂及1,4-DNI浓度对2,4-DNI得率的影响。重排适宜的反应条件是:微波功率375W,加热时间10min,氯苯为溶剂,1,4-DNI的浓度为10%,这时所得2,4-DNI的得率可达95%,熔点265～268℃(分解)。
For synthesis of 2,4-dinitroimidazole（2,4-DNI） from the rearrangement of 1,4-dinitroimidazole （ 1 ,4-DNI ）, microwave heating instead of conventional heating can improve yield of the product and shorten the reaction time from 4 -50 h to 10 min. The authors investigated the effects of microwave power for heating, reaction time,sorvent type and concentration of 1,4-DNI in chlorobenzene on the yield of 2,4-DNI. Based on this investigation the optimal rearrangement conditions would be as follows： microwave power： 375 W,heatingtime： 10 min,solvent： chlorobenzene,concentration ofl,4-DNl： 10%. Under the conditions listed above,the yield of resulting 2,4-DNI can be up to 95% with a melting point of 265 -268 ℃（decomposition）.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2010年第1期1-3,共3页
Chinese Journal of Energetic Materials
基金
山西大同大学青年科学研究项目(2007Q09)
