Phosphine-Catalyzed Dual Umpolung Domino Michael Reaction: Facile Synthesis of Hydroindole- and Hydrobenzofuran-2-Carboxylates
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DOI: 10.1021/acscatal.8b01011
Abstract: A highly atom-economical, chemoselective, and stereoselective Lewis base (LB)-catalyzed dual umpolung domino Michael reaction between cyclohexadienones and alkynyl esters has been developed. PPh3, as a LB catalyst, afforded either the hydroindole-2-carboxylates or hydrobenzofuran-2-carboxylates 3 as… read more here.
Keywords: umpolung domino; hydrobenzofuran carboxylates; domino michael; catalyzed dual ... See more keywords