Sterically encumbered regioselective cycloaddition of a calixarene derived bis(spirodienone) with 1,2-benzoquinones

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Title:	Sterically encumbered regioselective cycloaddition of a calixarene derived bis(spirodienone) with 1,2-benzoquinones
Authors:	Luxmi Varma, R Ganga, V B Suresh, E Suresh, C H
Keywords:	Diels alder reactions Molecular recognition Upper rim derivatives Calix<4>Arene
Issue Date:	2006
Publisher:	Elsevier
Citation:	Tetrahedron Letters 47(6):917-921;6 Feb 2006
Abstract:	A calix[4]arene derived bis(spirodienone) acts as the 2 pi component in a cycloaddition reaction with two molecules of 3,5di-tert-butyl-1-2-benzoquinone in the [2+4] manner leading to macrocycles with a benzodioxin moiety. A theoretical rationalization of the results suggested a sterically encumbered regioselective pathway, which gives sterically crowded products.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/1964
ISSN:	0040-4039
Appears in Collections:	2006

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