Water → HCID 54456186, compound

Participants

Reaction Steps

4-Methylbenzaldehyde (MBA) (0.50 mols-60 grams) is admixed with guanidine hydrochloride (0.25 mols, 25 grams) in molar ratio of 2:1. They are then heated under reflux in 150 ml of toluene under a Dean Stark water collector trap for approximately 17 hours to collect the theoretical amount of H2O evolved. The hot solution is rapidly decanted to ensure the removal of insoluble residues. The solution is then evaporated to dryness on a rotary evaporator. The crude immine is then recrystalized twice from absolute ethanol.

Provenance & Evidence