@article { ISI:000341359000029,
	title = {Multicomponent reactions involving phosphines, arynes and aldehydes},
	journal = {Chemical Communications},
	volume = {50},
	number = {77},
	year = {2014},
	month = {AUG},
	pages = {11389-11392},
	publisher = {ROYAL SOC CHEMISTRY},
	address = {THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND},
	abstract = {<p>Although nucleophilic phosphine-catalysis is a powerful tool for the construction of various carbocycles and heterocycles, the reactions in which phosphines are incorporated into the final product are rare, and the reports on phosphine addition to highly electrophilic arynes are scarce. Herein, we report the phosphine triggered multicomponent reaction of arynes and aldehydes, which takes place via the formal [3+2] cycloaddition of an initially generated 1,3-phosphonium zwitterion from phosphines and arynes with aldehydes. The reaction resulted in the formation of a diverse range of stable pentacovalent phosphoranes in good yields based on the benzooxaphosphole system.</p>},
	issn = {1359-7345},
	doi = {10.1039/c4cc05420b},
	author = {Bhunia, Anup and Kaicharla, Trinadh and Porwal, Digvijay and Gonnade, Rajesh G. and Biju, Akkattu T.}
}
@article {43907,
	title = {Metal-free, br{\o}nsted acid-catalyzed formal [3+2] annulation of quinone monoacetals with 2-naphthols},
	journal = {Journal of Organic Chemistry},
	volume = {82},
	year = {2017},
	month = {SEP},
	type = {Article},
	abstract = {An operationally simple and metal-free cross-coupling of quinone monoacetals (QMAs) with 2-naphthols catalyzed by triflic acid is reported. This formal [3+2] annulation allowed the synthesis of diverse naphtho[2,1-b]benzofuranderivatives in moderate to good yields. Preliminary mechanistic studies reveal the initial nucleophilic substitution of QMAs with 2-naphthols in preference to the mixed acetal formation and subsequent [3,3] sigmatropic rearrangement.},
	doi = {10.1021/acs.joc.7b02033},
	author = {Jacob, Anu and Roy, Tony and Kaicharla, Trinadh and Biju, Akkattu T.}
}
