Some Chemical Properties of 2,3-Dihydro-4H-[1,3]thiazino[3,2-a]benzimidazol-4-one and 2-Aryl-2,3-dihydro-4H-[1,3]thiazino[3,2-a]benzimidazol-4-ones. -The aryl-substituent at position 2 shows a significant effect on the reaction with alkylating reagents, hydrogen peroxide, or amines. -(BRITSUN, V. N.; ESIPENKO, A. N.; LOZINSKII, M. O.; Chem. Heterocycl.