Cyclothiomethylation of aliphatic polyamines with formaldehyde and hydrogen sulfide
摘要:
Cyclothiomethylation of the terminal amino groups in N-(2-aminoethyl)ethane-1,2-diamine, N,N'-bis(2-aminoethyl)ethane-1,2-diamine, and N,N'-bis(2-aminoethyl)ethane-1,1-diamine with formaldehyde and hydrogen sulfide gave the corresponding bis-1,3,5-dithiazinane derivatives. The reaction in aqueous butanol at 0 degrees C was accompanied by intermolecular thiomethylation at the secondary amino groups with formation of previously unknown polyheterocyclic compounds containing nitrogen and sulfur atoms.