M. Suarez et al., AN EFFICIENT PROCEDURE TO OBTAIN HEXAHYDROQUINOLEINES AND UNSYMMETRICAL 1,4-DIHYDROPYRIDINES USING SOLID INORGANIC SUPPORTS AND MICROWAVE ACTIVATION, Heterocyclic communications, 2(3), 1996, pp. 275-280
Satisfactory yields have been obtained in a one pot synthesis of hexah
ydroquinoleines and unsymmetrical 1,4-dihydropyridines using acidic or
basic alumina respectively using catalytic DMF under microwave activa
tion. Results were compared with those obtained following the classica
l method. The advantages obtained by the use of microwave irradiation
were demonstrated.