A novel general approach towards various nitroazoles via tandem process involving dinitrofuroxan cycloreversion followed by [3+2] cycloaddition of generated in situ nitroformonitrile oxide is developed. The reaction is promoted by addition of catalytic amounts of ionic liquids. Plausible mechanisms of the described processes based on quantum chemical calculations are proposed.
开发了一种通过涉及二硝基
呋咱环反转后跟生成的当场硝基亚甲硝基氧化物的[3+2]环加成串联过程来合成各种硝基唑类的新型通用方法。反应通过加入催化量的
离子液体来促进。基于量子
化学计算,提出了所描述过程的可能机制。