Synthesis of Some 3-Arylimino-5-(N-Methylanilino-)-1,2,4-Δ4-Dithiazolines

Applied Chemistry Section, School of Applied Sciences, Institute of Technology, Banaras Hindu University, Varanasi-221 005 Manuscript received 30 November 1981, revised 27 May 1982, accepted 25 August 1982 Some new 3-arylimino-5-(N-methylanilino-)-1,2,4-Δ4 -dithiazolines have been syn­thesised by the oxidative debenzyiation and cyclisation of the corresponding 5-aryl­-1,1-methylphenyl-2-S-benzyliso-4-thiobiurets. The characterisation of these com­pounds have been achieved by the direct oxidation of the corresponding 2,4-dithiobiurets and also by infrared spectra