A novel route to 1,2-benzothiazin-4-ones involving s-dealkylation of an arylalkyl sulphide
Abstract
A novel preparation of the sulphenylimine, 1,2-benzothiazine-4-one involving sequential nucleophilic displacement of a toluene-p-sulphonate group from an oxime tosylate and dealkylation of an arylalkyl sulphide is reported; a possible mechanism is presented.