3-Pyridinecarboxaldehyde → HCID 70340346, compound

Participants

Reaction Steps

4.3 g of 3-formylpyridine and two drops of concentrated hydrochloric acid are added to a solution of 6.8 g of 1-amino-2,3-dihydro-3-methyl-2-oxo-4-tert-butyl-1H-imidazole in 50 ml of ethanol. The reaction mixture is refluxed for 30 minutes with stirring and then substantially concentrated. The liquid residue is dissolved in a small amount of diethyl ether, and the solution is cooled to 0°. The crystals which have separated out are filtered off with suction and dried. This gives the title compound which melts at 116°-121°.

Provenance & Evidence