SYNTHESIS OF S-TRIAZOLO (3,2-B)-1,3-THIAZIN-5-ONE & S-TRIAZOLO-(3,4-B)-1,3,4-THIADIAZIN-6-ONE THROUGH THE USE OF DIMETHYLACETYLENE DICARBOXYLATEPRAMOD UPADHYAYA V; SRINIVASAN VR.1978; INDIAN J. CHEM., B; IND; DA. 1978; VOL. 16; NO 8; PP. 737-738; BIBL. 5 REF.Article

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