Regio- and stereoselective synthesis of novel tetraspiro-bispyrrolidine and bisoxindolopyrrolidine derivatives through 1,3-dipolar cycloaddition reaction

An efficient approach to the synthesis of a new class of tetraspiro-bispyrrolidines and tetraspiro-bisoxindolopyrrolidines has been accomplished through 1.3-dipolar cycloaddition reaction. The reported method is a one-pot, three component reaction, that is, run under solvent-free microwave conditions.