Aza-Annulation of Polarized N,S- and N,N-Ketene Acetals with Itaconic Anhydride: Synthesis of Novel Functionalized 1,2,3,4-Tetrahydro-2-pyridones and Related Azabicycles - Chakrabarti, Sriparna; Panda, Kausik; Misra, Nimesh C; Ila, Hiriyakkanavar; Junjappa, Hiriyakkanavar (Synlett, 2005)