Al. Mikhalchuk et al., CYCLOCONDENSATION OF ALPHA-HYDROXYMETHYLENE KETONES WITH CYCLIC AZOMETHINES, Russian journal of applied chemistry, 71(4), 1998, pp. 667-669
A new method was developed for synthesis of fused nitrogen-containing
heterocycles by cyclocondensation of alpha-hydroxymethylene ketones wi
th cyclic azomethines.