SELECTIVE REDUCTION OF 4H-1,3-THIAZINE-4-ONES: EASY ACCESS TO SUBSTITUTED 6H-1,3-THIAZINES

Article abstract of DOI:10.1016/S0040-4039(00)94487-3

Selective reduction of 4H-1,3-thiazine-4-ones leads to new substituted 6H-1,3-thiazines.The isomerisation from 6- to 5-methoxycarbonyl-6H-1,3-thiazines via substituted 4-acetoxy-1-thia-3-aza-butadienes by a cycloreversion-cycloaddition process can be perf