@article { ISI:000316451500010,
	title = {Easy and multigram-scale synthesis of pillar[5]quinone by the hypervalent iodine oxidation of 1,4-dimethoxypillar[5]arene},
	journal = {Synthesis-Stuttgart},
	volume = {45},
	number = {7},
	year = {2013},
	month = {APR},
	pages = {896-898},
	publisher = {GEORG THIEME VERLAG KG},
	address = {RUDIGERSTR 14, D-70469 STUTTGART, GERMANY},
	abstract = {<p>Pillar[5]quinone (P[5]Q), a potential molecule for anion recognition and supramolecular host-guest chemistry, has not as yet been used for practical purposes, presumably due to the synthetic difficulties in obtaining it in large amounts. Herein, we reveal an easy-to-operate and chromatography-free synthetic strategy that can furnish P[5]Q on a multigram scale; its success relies on the utility of hypervalent iodine, generated in situ from Oxone/ iodobenzene, as an efficient oxidant. Pillar[5]quinone was obtained in multigram quantities by oxidation of 1,4-dimethoxypillar[5]arene with Oxone/iodobenzene and simple purification by crystallization from 1,1,2,2-tetrachloroethane, thus opening up the opportunity to explore the properties of this interesting macrocyclic quinone.</p>},
	keywords = {hypervalent iodine oxidation, macromolecules, pillar-arenes, supramolecular chemistry},
	issn = {0039-7881},
	doi = {10.1055/s-0032-1318390},
	author = {Shivakumar, Kilingaru I. and Sanjayan, Gangadhar J.}
}
