TITLE

Heteropoly Acid Catalyzed Selective Cyclization of 6-Alkyl-3-propargylmercapto-1,2,4-triazin-5(2H)-one

AUTHOR(S)
Hakimi, Fatemeh; Tabatabaee, Masoumeh; Heravi, Majid M.; Roshani, Mina; Bamoharam, Fatemeh F.
PUB. DATE
April 2011
SOURCE
E-Journal of Chemistry;2011, Vol. 8 Issue 2, p798
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Cyclization of 6-alkyl-3-propargylmercapto-1,2,4-triazin-5(2H)- one, derivatives (2) in the presence of Keggin heteropoly acids, H3PW12O40, H3PMo12O40, H4SiW12O40 and lacunary Keggin structure (K7PMo2W9O40) afforded 3 (3a = 6-dimethyl-7H-thiazolo[2,3-b][1,2,4]-triazin-7-one and 3b=6- ethyl-3-methyl-7H-thiazolo[2,3-b][1,2,4]-triazin-7-one) in high yields and short reaction times.
ACCESSION #
62086037

 

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