Varma, RamavarmaluxmiGanga, Viswanathan bhagavathyEringathodi, Suresh2012-02-022012-02-022007J. Org. Chem. 2007, 72, 1017-1019 1017http://hdl.handle.net/1968424/725enPhotochemical Rearrangement of Calix[4]arene-Derived Bis(spirodienones): Formation of a New MacrocycleArticle