A new cyclisation involving a methanesulfinyl leaving group yielding 6-sulfenylated 2-amino-4H-5,6-dihydro-1,3,4-thiadiazines

Article abstract of DOI:10.1055/s-1993-25957

Nucleophilic addition of sulfenylated dimethyl sulfoxide derivatives to thiosemicarbazones 3 followed by a new intramolecular cyclisation involving an acid labile methanesulfinyl leaving group yields 6-sulfenylated 2-amino-5-aryl-4H,5,6-dihydro-1,3,4-thia