abstract |
METHOD FOR OBTAINING BENZO-2,1,3-TIADIAZOLE by reacting ortho-phenyl nediamine with sulfur dioxide in a solvent medium, followed by separation of the target product, characterized in that, to increase the yield of the target product, pyridine is used as a solvent and the process is carried out to increase the mass of the reaction mixture 2.25-2.45 times. (L |