Chemistry of 1,2,4-triazines. XVI. An anomalous tosylation of 3-methylthio-5-oxo-2,5-dihydro-1,2,4-triazine and the properties of the products
CHENG TIEMING;HAN MEI;HU CHANGFENG;LEI GUANGQING;CAI MENGSHEN
Acta Chimica Sinica . 1991, (9): 921 -926 .