Iron-catalyzed indolizine synthesis from pyridines, diazo compounds, and alkynesTools Douglas, Tim, Pordea, Anca and Dowden, James (2017) Iron-catalyzed indolizine synthesis from pyridines, diazo compounds, and alkynes. Organic Letters, 19 (23). pp. 6396-6399. ISSN 1523-7052 Full text not available from this repository.
Official URL: http://pubs.acs.org/doi/10.1021/acs.orglett.7b03252
AbstractThe 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 pyridinium ylide formation over background reactivity.
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