The cyclodehydration of Bohlmann-Rahtz aminodienones is catalysed by iodine in ethanol at room temperature to give 2,3,6-trisubstituted pyridines in excellent yield, with total regiocontrol and without the need for chromatographic purification.
Bohlmann-Rahtz
氨基二烯酮的环脱
水反应由
碘在
乙醇中在室温下催化,以优异的收率得到 2,3,6-三取代
吡啶,具有完全区域控制且无需色谱纯化。