A facile method for the synthesis of pyrrolo[2,3-j]phenanthridines from indoleanilines and aldehydes in the presence of Brønsted acid catalyst and benzoquinone oxidant has been established. This approach features excellent yields, high efficiency and a wide range of substrate scope. Mechanism studies exhibited that this reaction was a cascade process including acid-catalyzed condensation of indoleanilines
Traceless Fischer indole synthesis on the solid phaseElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b305497g/
The Fischer indole synthesis using polymer-bound hydrazines is employed as the key step for the development of a traceless indole synthesis on a solidsupport.