Reaction Kinetics and Catalysis Letters, Vol.73, No.1, 109-115, 2001
Rate and stereoselectivity changes during hydrogenation of N-heterocycles
High diastereoselectivities. were obtained in the heterogeneous catalytic hydrogenation of chiral pyrrole and pyridine derivatives with complete conversion, in non-acidic medium. The products of the hydrogenations, secondary and tertiary amines act as catalyst modifiers, increasing the d.e. values in the last period of the reactions.