%0 Journal Article %T Solventless Lactam Synthesis by Intramolecular Cyclizations of ¦Á-Iminoester Derivatives under Microwave Irradiation %A Fatima-Zohra Zradni %A Jack Hamelin %A Aicha Derdour %J Molecules %D 2007 %I MDPI AG %R 10.3390/12030439 %X We have previously reported a new synthesis of amides from esters and amines under microwave irradiation, offering much higher yields than those achieved with conventional heating [1]. We have now extended these studies to the ring closure of neat iminoesters I2, I3 and I4-I6 to give five- and six-membered ring lactams L5, L6 and larger lactams L7-L9 (where I means imine and L means lactam), respectively, under both classical heating conditions and microwave irradiation. %K Medium-sized ring lactams %K imine alkylation %K Schiff bases %K microwave irradiation %U http://www.mdpi.com/1420-3049/12/3/439