Fischer's base-triggered formal (3+2) cycloadditions with 3-isothiocyanato oxindoles as acceptor–donor synthons

Abstract

Herein, a previously unreported Fischer’s base reactants serving as useful 2C building blocks in (3+2) cycloaddition reactions to build a library of bispiro[Fischer base-oxindole] hybrids is described. These structurally intriguing...