SEARCH Articles Figures Tables Pyridine aldehydes Pyridine, dihydroanalysis of aldehydes Hantzsch synthesis Pyridine, dihydroanalysis of aldehydes Knoevenagel reaction Pyridine, dihydroanalysis of aldehydes optically active Pyridine, dihydroanalysis of aldehydes reaction with singlet oxygen Pyridine, dihydroanalysis of aldehydes synthesis