4，6⁃二 硝 基 ⁃5，7⁃二 氨 基 苯 并 氧 化 呋 咱 的 合 成 新 方 法 与 性 能

To address the issues of incomplete amination and difficult removal of acidic impurities in the existing synthetic meth⁃ ods of 4，6⁃dinitro⁃5，7⁃diaminobenzofuroxan（CL⁃14），a novel synthetic route for CL⁃14 was developed. Starting from 1⁃chlo⁃ ro⁃3，5⁃dimethoxybenzene（1），CL⁃14 was synthesized via a three⁃step process involving nitration，azidation/dediazotization，and amination. The effects of molar ratio，reaction temperature，reaction time，and solvent type on the yields of 1⁃chloro⁃3，5⁃di⁃ methoxy⁃2，4，6⁃trinitrobenzene（2），5，7⁃dimethoxy⁃4，6⁃dinitrobenzofuroxan（3），and CL⁃14 were investigated. Meanwhile，CL⁃14·DMSO single crystals were successfully cultivated by temperature⁃programmed crystallization. The crystal belongs to the monoclinic system with the P2₁/n space group. The short⁃pulse shock initiation performance of CL⁃14 was tested using the Neyer D⁃optimality method，and the initiation threshold voltage was 1223 V，indicating a favorable shock initiation sensitivity. Under the optimized reaction conditions，the overall yield of CL⁃14 synthesized from starting material 1 via the three⁃step route was 45%，with a purity of ≥97%.