Iron-Catalyzed Indolizine Synthesis from Pyridines, Diazo Compounds, and Alkynes
作者:Tim Douglas、Anca Pordea、James Dowden
DOI:10.1021/acs.orglett.7b03252
日期:2017.12.1
The iron(III)-catalyzed synthesis of indolizines from commercially available alkyne, pyridine, and diazo precursors is reported. This mild, expedient method is tolerant of various solvents and proceeds with as little as 0.25 mol % [Fe(TPP)Cl]. Significantly, this multicomponent reaction is compatible with electrophilic alkynes; control experiments demonstrate the importance of the catalyst in promoting