4-(Dimethylamino)Benzaldehyde → HCID 70360969, compound

Participants

Reaction Steps

0.82 g of 1,3-bis[[p-(dimethylamino)-benzylidene]amino]-2-methylimidazolium chloride is suspended in 30 ml of ethanol, whereupon the suspension is treated with 0.3 g of 4-dimethylaminobenzaldehyde and 0.17 g of piperidine and heated to boiling under reflux. A deep red solution results. After 20 hours it is left to cool. The precipitated product is removed by filtration and re-precipitated from methylene chloride/ether. After recrystallization from toluene there is obtained 1,3-bis[[p-(dimethyl-amino)benzylidene]amino]-2-[p-(dimethylamino)styryl]imidazolium chloride as a red solid of melting point 238°-240°.

Provenance & Evidence