Herein we report a new straightforward synthesis of cis and trans 2,5-disubstituted N,N-dialkylpiperazines, even in enantioenriched form, by reacting non-activated N-alkyl arylaziridines in the presence of a catalytic amount of a Lewis acid. A stereochemical and NMR investigation revealed useful mechanistic insights for this process.
本文中,我们通过在催化量的
路易斯酸存在下使未活化的N-烷基芳基
氮丙啶反应,使顺式和反式2,5-二取代的N,N-二烷基
哌嗪(即使是对映体富集的形式)合成了新的直接方法。立体
化学和NMR研究揭示了对该过程有用的机理见解。