Stoss, Peter published the artcileCyclic sulfoximides. IV. 3-Imino-3H-1λ4,2-benzisothiazole 1-oxides, Safety of 3-Aminobenzo[d]isothiazole 1,1-dioxide, the publication is Chemische Berichte (1975), 108(12), 3855-63, database is CAplus.
2-Sulfinylbenzamides I (R = Me, Ph) cyclized with hydrazoic acid to yield benzisothiazole oxides II, which are cyclic sulfoximides. II reacted with BrCN or H2NCN, R2COCl [R2 = C6H4R3 (R3 = o-OH, m-OMe, o-OAc), OMe, OCHMeEt, OCH2CH2OMe, cyclohexyloxy, PPh, alkyl, CH2Ph, CH2OC6H4Cl-p, OEt], R4NCX (R4 = Ph, CH2CH2Cl, Bu, X = O; R4 = allyl, X = S), and N,N’-carbonyldiimidazole to give imino-N-substituted derivatives III, IV, V, and VI, resp.
Chemische Berichte published new progress about 7668-28-2. 7668-28-2 belongs to isothiazole, auxiliary class Sulfamide,Amine,Benzothiazole, name is 3-Aminobenzo[d]isothiazole 1,1-dioxide, and the molecular formula is C13H9FO2, Safety of 3-Aminobenzo[d]isothiazole 1,1-dioxide.
Referemce:
https://en.wikipedia.org/wiki/Isothiazole,
Isothiazole – ScienceDirect.com