Monatshefte fur Chemie p. 339 - 342 (1983)
Update date:2022-07-29
Topics:
Gakhar, H. K.
Jain, Anju
Gill, J. K.
Gupta, Shashi Bhushan
3-Methyl-6H-<1,2,4>triazolo<4',3':4,5><1,3,4>thiadiazolo<2,3-b>quinazolin-6-one (6) has been synthesized by the condensation of isatoic anhydride (1) with 4-amino-5-mercapto-3-methyl-<1,2,4>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
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Doi:10.1246/cl.1983.589
(1983)Doi:10.1016/S0022-1139(00)81163-X
(1983)Doi:10.1016/S0040-4039(00)81612-3
(1983)Doi:10.1016/S0040-4039(00)81583-X
(1983)Doi:10.1021/ol902411r
(2009)Doi:10.1016/S0040-4020(01)88597-5
(1983)
