Comparison of the reactivity between 2- and 3-nitropyrroles in cycloaddition reactions. A simple indole synthesis
作者:Claudia Della Rosa、Maria Kneeteman、Pedro Mancini
DOI:10.1016/j.tetlet.2006.12.097
日期:2007.2
N-Tosyl-2-nitropyrroles react at high temperature with poorly and strongly activated dienes. They exhibit a dienophilic character similar to N-tosyl-3-nitropyrroles producing the corresponding indoles through a classical Diels–Alder process. A similar behaviour was observed in disubstituted N-tosyl-pyrroles.
N-甲苯磺酰基-2-硝基吡咯在高温下与活化程度较弱的二烯发生反应。它们表现出与N-甲苯磺酰基-3-硝基吡咯类似的双亲性特征,并通过经典的Diels-Alder工艺产生相应的吲哚。在二取代的N-甲苯磺酰基-吡咯中观察到类似的行为。