Abstract
A convenient multicomponent reaction for the synthesis of a variety of rarely investigated 1,3-benzothiazine-2-thiones using carbon disulfide, primary amines and ortho-halogenated benzaldehydes as commercially available substrates is reported. Additionally, the high performance of the newly developed one-pot procedure enables a direct route to a wide range of analog annulated polyheterocyclic structures. The potential of these compounds for the late-stage elaboration of high-functionalized molecules by simple synthetic operations is demonstrated in selected subsequent derivatizations giving heterocyclic products of high diversity.
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