Reaction of 4-AryIidene-2-imidazolin-5-one Derivatives with 3,4-Dithio Toluene in the Presence of Triethylamine

摘要

The addition of 3,4-dithio toluene with 2-imidazolin-5-one leads to the 1,4-addition adduct products instead of attack to the carbonyl group as a nucleophile and ring cleavage of imidazolones occurs.Unsaturated 2-imidzolin-5-ones,which are the nitrogen analogs of azalactones,form an important class of heterocyclic compounds because they can be converted into alpha-amino-acids and used in drugs,pigments and electrodes,etc.