SEARCH Articles Figures Tables 7-Substituted pyridines Highly substituted pyridine synthesi Ionic liquids highly substituted pyridine synthesi Penta-substituted pyridine synthesis Pyridine synthesis Pyridine-2-carbaldehydes, 6-substituted synthesis Pyridines substitution Substitution synthesis Synthesis of Highly Substituted Pyridines Trifluoromethyl substituted pyridines synthesis