@article {45880,
	title = {Enantioselective synthesis of functionalized pyrazoles by NHC-catalyzed reaction of pyrazolones with alpha,beta-unsaturated aldehydes},
	journal = {Organic Letters},
	volume = {17},
	year = {2015},
	month = {MAR},
	pages = {1417-1420},
	type = {Article},
	abstract = {<p>The N-heterocyclic carbene (NHC)-organocatalyzed enantioselective annulation reaction of pyrazolones with alpha,beta-unsaturated aldehydes proceeding via the chiral alpha,beta-unsaturated acyl azolium intermediates under oxidative conditions is presented. The reaction afforded dihydropyranone-fused pyrazoles in moderate to good yields and good er values under operationally simple and base-free conditions.</p>},
	issn = {1523-7060},
	doi = {10.1021/acs.orglett.5b00293},
	author = {Yetra, Santhivardhana Reddy and Mondal, Santigopal and Suresh, Eringathodi and Biju, Akkattu T.}
}
