Indole synthesis by rhodium(III)-catalyzed hydrazine-directed C-H activation: redox-neutral and traceless by N-N bond cleavage.Angew Chem Int Ed Engl. 2013 Nov 18; 52(47):12426-9.AC
Fishing for complements! There is an alternative to the useful Fischer indole synthesis. The new method utilizes the same retrosynthetic disconnection but is based on a Rh(III) -catalyzed directed CH activation step and a successive coupling with alkynes.