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。