ethyl 3,4-dihydro-4-(2-propenyl)-1(2H)-pyridinecarboxylate

ethyl 6-prop-2-enyl-3,6-dihydro-2H-pyridine-1-carboxylate

ethyl 4-methoxy-3,4-dihydropyridine-1(2H)-carboxylate

5-bromo-4,4,5,5-tetrafluoropent-1-ene

4,5-dichloro-4,5,5-trifluoropent-1-ene