86345-12-2Relevant articles and documents
Triazolothiadiazoloquinazolin-6-one
Gakhar, H. K.,Jain, Anju,Gill, J. K.,Gupta, Shashi Bhushan
, p. 339 - 342 (1983)
3-Methyl-6H-triazolothiadiazoloquinazolin-6-one (6) has been synthesized by the condensation of isatoic anhydride (1) with 4-amino-5-mercapto-3-methyl-triazole (2) and final cyclisation of the intermediate 3 with POCl3 and PCl3.Alternatively 6 could also be synthesized by the condensation of 3-amino-2-mercapto-3H-quinazolin-4-one (7) with N-carbethoxyhydrazine in presence of hydrochloric acid and final cyclisation of the intermediate 8 with acetic acid.The structures have been confirmed on the basis of IR, PMR and analytical results. - Keywords: Heterocycles; Infrared; 1H-NMR