SYNTHESIS OF 1-SUBSTITUTED-2- SUBSTITUTEDGUANIDINO-4-SUBSTITUTEDIMINE-6-THIO- 1,3,5-TRIAZINES

2-Substitutedguanidino-4-substitutedimine-6-substitutedimino-1,3,5-thia-diazines (VIIIa-r) were successfully isomerised into 1-substituted-2-sub-stitutedguanidino-4-substitutedimine-6-thio-1,3,5-triazines or 1-methyl-3-(1- substituted-4-{[(E)-substitutedmethylidene]amino}-6-thioxo-1,6-dihydro-1,3,5-triazin-2-yl)guanidines (IXa-r) by refluxing with 10% aqueous ethanolic sodium bicarbonate medium. The structure of all the synthesized compounds was justified on the basis of chemical characteristics, elemental analysis and spectral analysis.