A. Lorente et al., ON THE MECHANISM OF FORMATION OF PYRIDINES FROM ALPHA,BETA-UNSATURATED NITRILES AND ACTIVE CYANO COMPOUNDS, Heterocycles, 43(1), 1996, pp. 33-48
The mechanism of formation of pyridines from alpha,beta-unsaturated ni
triles and active cyano compounds has been investigated. These process
es proceed through a Michael adduct which undergoes a regioselective c
yclization to the corresponding heterocyclic compound. The regioselect
ivity of the heterocyclization processes is justified.