Gf. Zhao et al., STUDIES ON THE ACTIVITIES AND SYNTHESIS O F N-SUBSTITUTED PYRIMIDINYLOR BAMOYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-1,1-DIOXIDES, Gaodeng xuexiao huaxue xuebao, 17(10), 1996, pp. 1560-1564
In this paper new 3-carboxamides of 4-hydroxy-2H-1,2-benzothiazine-1,1
-dioxides were synthesized by aminolysis of -2-hydro(methyl)-2H-1,2-be
nzothiazine-3-carboxylic acid ethyl ester-1,1-dioxides with substitute
d aminopyrimidines or aminotriazines. Their structures were characteri
zed by H-1 NMR, IR, MS and elementary analysis. The biological tests i
ndicated that the majority of these compounds showed herbicidal activi
ty and some showed better plant-growth regulating activity and antiinf
lammatory activity.