The application discloses a green method for synthesizing [1,2]
thiazine derivative, and belongs to the technical field of
green chemistry and
organic synthesis. The [1,2]
thiazine derivative containing
alkane,
alkene,
halogen and heterocycle is prepared under the condition of
room temperature, openness and neutrality, and a catalyst is MBr x (M is Fe 2+ , Fe 3+ , Ce 3+ , etc., and x is 2-3), and the only oxidant is H2O2. The application realizes the synthesis and preparation of [1,2]
thiazine derivative with H2O2 as an oxidant for the first time, and the catalytic reaction is green and sustainable, and the use of expensive and complex catalysts is avoided. The by-product is H2O, and the problems of environmental damage and low yield caused by catalytic reactions of many other strong oxidants are solved. The application has the advantages of mild reaction condition, simple reaction process, high yield, safety,
environmental protection, conformity to the
green chemistry concept, wider applicability, wide development prospect and application prospect, and can be widely applied in the fields of
organic synthesis,
medicine,
pesticide and probe, etc.