Royal Society of Chemistry, Dalton Transactions, 5(44), p. 2071-2074, 2015
DOI: 10.1039/c4dt03467h
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CuII-promoted aerial oxidation of a series of benzothiadiazines (1) under ambient conditions affords the first structurally characterised examples of thiadiazine S-oxides (2). The isolation of the homoleptic CuII 3-(2′-pyridyl)benzothiadiazide-S-oxide complex provides insight into the reaction mechanism.