SEARCH Articles Figures Tables 1,4-Thiazine 1,4-Thiazine 1-oxides 3.6- Dihydro-1,2-thiazine 1-oxide 5,6-Dihydro- -1-oxid 718 Dihydro-, oxidation Dihydro-1,4-thiazine 1-oxides synthesis Thiazin Thiazines dihydro