178674-90-3Relevant articles and documents
Synthesis of 3-substituted 4,1,2-benzothiadiazine 4,4-dioxides and 2 or 3-substituted 1,4-benzothiazine 1,1-dioxides
Balbi,Sottofattori,Mazzei
, p. 347 - 350 (2007/10/03)
The title compounds were prepared starting from the synthones 6 using two different synthetic approaches: 3-substituted 1,4-benzothiazine 1,1-dioxides were synthesised by cyclisation with phosphorus osychloride as the Vilsmeier reagent, while 4,1,2-benzot