We have successfully using the exocyclic double bond of tricarbonyliron triene complexes to undergo (2+1) and (4+2) cycloaddition for the rapid construction of spiro[2.5]octane and spiro[5.5]undecane system. These cycloaddition reactions were chemo-, regio-, and stereoselective. Synthetic studies toward Upenamide, Manzamine A and Manzamine J by using 1-cyano-2,4-cyclohexadiene tricarbonyliron complexes were also discussed.

This thesis deals with the preparation of enantiomerically and diastereomerically pure spirocompounds using asymmetric organocatalysis. The first part is focused on the enantioselective synthesis of spirocompounds by organocatalytic reaction of α,β-unsaturated aldehydes with sulfur heterocyclic compounds catalysed with secondary amines. It is a domino Michael/Michael/aldol reaction using iminium and enamine activation. The second part is focused on the subsequent transformation of the prepared spirocompounds.