Reaction of Mono-, Di-, and Trichloronitrobenzenes with<i>N</i>-Methyl Substituted Cyclic Tertiary Amines under High Pressure
作者:Toshikazu Ibata、Muhong Shang、Tetsuo Demura
DOI:10.1246/bcsj.68.2717
日期:1995.9
The reactions of mono-, di-, and trichloronitrobenzenes with 1-methylpyrrolidine under high pressure gave products of demethylation and ring-opening through a quaternary pyrrolidinium chloride intermediate formed by the SNAr reaction. On the other hand, the reactions with 1-methylpiperidine and 4-methylmorpholine gave only demethylation products. The selectivities of the reactions of 1-methylpyrrolidine
单-、二-和三氯硝基苯与 1-甲基吡咯烷在高压下反应,通过 SNAr 反应形成的季吡咯烷氯化物中间体产生去甲基化和开环产物。另一方面,与 1-甲基哌啶和 4-甲基吗啉的反应仅产生去甲基化产物。发现 1-甲基吡咯烷与这些氯硝基苯反应的选择性受吡咯烷鎓基团的相邻取代基的影响。