Untersuchungen an 1.3-Thiazinen, 34. Mitt. Oxidationen an Thiourethanen, 8. Mitt. Oxidative Desulfurierung und nitrosierende N-Desalkylierung durch salpetrige Säure oder Salpetersäure

1.3-Thiazines, XXXIV; Oxidations of Thiourethanes, VIII Oxidative Desulfurisation and Nitrosating N-Dealkylation by Nitrous or Nitric Acid Depending on the reaction conditions, 3-amino-2-thioxotetrahydro-4H-1.3-thiazin-4-ones 1 are desulfurized by nitrous or nitric acid to yield the 2-oxoanalogues 2 or in addition are dealkylated at the nitrogen atom with liberation of aldehydes and subsequent N-nitrosation to 3 .