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Gold(i)-catalyzed [2 + 2 + 2] cycloaddition of allenamides, alkenes and aldehydes: A straightforward approach to tetrahydropyrans

AuthorsFaustino, Helio; Varela, Iván; Mascareñas, José L. ; López, Fernando
Issue Date2015
PublisherRoyal Society of Chemistry (UK)
CitationChemical Science 6: 2903-2908 (2015)
AbstractAllenamides participate as two-carbon components in an intermolecular [2 + 2 + 2] cycloaddition with alkenes and aldehydes when treated with catalytic amounts of a phosphite gold complex. The reaction is highly regio- and chemoselective, and works with different types of alkenes, including styrenes, enol ethers or enamides, as well as with aromatic and aliphatic aldehydes. Accordingly, different types of 2,6-disubstituted tetrahydropyrans can be stereoselectively assembled in a single step from commercial or very accessible starting materials.
Identifiersdoi: 10.1039/c5sc00295h
issn: 2041-6520
e-issn: 2041-6539
Appears in Collections:(IQOG) Artículos
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