Synthesis of 4H-chromenes by an unexpected, K3PO4-mediated intramolecular rauhut–currier type reaction

TitleSynthesis of 4H-chromenes by an unexpected, K3PO4-mediated intramolecular rauhut–currier type reaction
Publication TypeJournal Article
Year of Publication2016
AuthorsBhunia, A, Yetra, SReddy, Gonnade, RG, Biju, AT
JournalOrganic & Biomolecular Chemistry
Volume14
Issue24
Pagination5612-5616
Date PublishedAPR
Abstract

In an attempt to develop the umpolung of Michael acceptors using chalcones having an enoate moiety under N-heterocyclic carbene (NHC) catalysis, a K3PO4-mediated intramolecular Rauhut–Currier type reaction was observed. This C(sp2)–C(sp2) coupling reaction afforded the biologically important 4H-chromenes in moderate to good yields. It is likely that the enol ether functionality acts as the nucleophilic trigger in this reaction.

DOI10.1039/C6OB00654J
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

3.559

Divison category: 
Center for Material Characterization (CMC)
Organic Chemistry
Physical and Materials Chemistry