178674-92-5

Upstream product

• 15898-45-0 sodium 2-nitrobenzenesulfinate 
• 26727-11-7 α-Ethoxycarbonyl-α-brom-N-diethylacetamid 
• 178674-88-9 N,N-Diethyl-2-(2-nitro-benzenesulfonyl)-malonamic acid ethyl ester 

Relevant academic research and scientific papers

Synthesis of 3-substituted 4,1,2-benzothiadiazine 4,4-dioxides and 2 or 3-substituted 1,4-benzothiazine 1,1-dioxides

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