Synthesis and Isomerization of 3-Pyrroline Enamines
3-Pyrroline reacts with cyclic ketones to form enamines as kinetically controlled products. Under more vigorous conditions, pyrroles are formed as thermodynamically controlled products by way of a 1,3- hydride shift.
Cook, Addison Gilbert; Switek, Karen A.; Cutler, Kenneth A.; and Witt, Allison M., "Synthesis and Isomerization of 3-Pyrroline Enamines" (2004). Chemistry Faculty Publications. Paper 15.