TiCl4 catalyzed tandem construction of C–C and C–O bonds: a simple and one-pot atom-economical stereoselective synthesis of spiro-oxindoles†
Abstract
An atom-economical stereoselective synthesis of [{1-acetyl-5-methyl-6,8-dioxabicyclo(3.2.1)octane}-7-spiro-3′-(indolin-2′-one)] derivatives, containing both the