Metal free oxidative CC bond cleavage: Facile and one-pot tandem synthesis of benzothiadiazine-1,1-dioxides
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Add time:09/01/2019 Source:sciencedirect.com
An interesting protocol for the synthesis of benzothiadiazine-1,1-dioxides through iodine-catalyzed one-pot dehomologative oxidation of styrenes and readily available 2-aminobenzenesulfonamide has been developed. Diverse benzothiadiazine-1,1-dioxides were prepared using I2 as a catalyst, TBHP as an oxidant and Na2CO3 as a base. This reliable, metal and ligand free conversion involves dehomologation of styrene to aromatic aldehyde which on subsequent cyclisation affords benzothiadiazine-1,1-dioxides in good yield.
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