Synthesis of New Antimicrobials. IV. Synthesis of Alkylenebis-(thiourea) Derivatives and Their Related Compounds

In order to examine the antimicrobial activity, alkylenebis (thiourea) derivatives and their related compounds were synthesized. 3, 3'-Substituted 1, 1'-alkylene-bis-(thiourea) derivatives were prepared from alkylenebis (isothiocyanates) and amines. Also 3, 3'-alkylene-bis [2-thio-2, 4 (1H, 3H)-quinazolinediones] were prepared by the reaction of alkylenebis (isothiocyanates) and anthranilic acid, or alkylene diamines and ethyl o-isothiocyanatobenzoate respectively.