@article {44192,
	title = {Synthesis of furo[2,3-b]pyran-2-ones through Ag(I)- or Ag(I)-Au(I)-catalyzed cascade annulation of alkynols and alpha-ketoesters},
	journal = {Organic Letters},
	volume = {20},
	year = {2018},
	month = {FEB },
	pages = {872-875},
	type = {Article},
	abstract = {<p>Ag(I)- or Ag(I)-Au(I)-catalyzed cascade annulation of alkynols (5-hexyn-1-ol systems) with a-ketoesters involving a dual activation process (pi and sigma) has been developed for the first time. This reaction proceeds through cycloisomerization of alkynol to give the 6-endo-enol ether followed by annulation with an alpha-ketoester to furnish furo[2,3-b]pyran-2-ones in good yields. Chemical structures of all products were rigorously confirmed by single crystal X-ray analysis and analogy.</p>},
	issn = {1523-7060},
	doi = {10.1021/acs.orglett.7b04027},
	author = {Thorat, Sagar S. and Kataria, Priyanka and Kontham, Ravindar}
}
