@article {48264,
	title = {Construction of the quinobenzoxazine core via gold-catalyzed dual annulation of azide-tethered alkynones with anthranils},
	journal = {Organic \& Biomolecular Chemistry},
	volume = {21},
	year = {2023},
	month = {MAR },
	pages = {2127-2137},
	type = {Article},
	abstract = {<p>
	A new catalytic method for the construction of the quinobenzoxazine core has been developed employing the gold-catalyzed cyclization of o-azidoacetylenic ketones in the presence of anthranils. The overall process comprises of a gold-catalyzed 6-endo-dig cyclisation of o-azidoacetylenic ketone leading to a alpha-imino gold carbene and subsequent carbene transfer to anthranil leading to the 3-aryl-imino-quinoline-4-one intermediate, which undergoes 6 pi-electrocyclization and aromatization to form the central quinobenzoxazine core. This transformation provides a new approach to a diverse array of quinobenzoxazine structures, in addition to being scalable and having mild reaction conditions.</p>
},
	issn = {1477-0520},
	doi = {10.1039/d3ob00098b},
	author = {Halnor, Swapnil V. V. and Dhote, Pawan S. S. and Ramana, Chepuri V. V.}
}
