Benzophenone → HCID 20459486, compound

Participants

Reaction Conditions

Reaction Steps

255.1 g of benzophenone, 298 ml of 1,2-diaminopropane and 0.2 g of p-toluenesulphonic acid are mixed and heated for 30 minutes under reflux. Approximately 250 ml are then distilled off, the remainder is allowed to cool to approximately 80° C. and approximately 350 ml of 2-ethoxyethanol (ethylene glycol monoethyl ether) are added, followed, while stirring, by 70 ml of water and the whole is allowed to crystallise in an ice bath. N,N'-bis-(diphenylmethylene)-1,2-propylenediamine is obtained which can be purified by recrystallisation from ethanol (approximately 180 ml) and should be dried thoroughly before further reaction.

Provenance & Evidence