PROCESS FOR THE PREPARATION OF 6-METHYL-3,4-DIHYDRO-1,2,3-OXA-THIAZIN-4-ONE 2,2-DIOXIDE AND ITS NON-TOXIC SALTS

摘要

6-Methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide and its non-toxic salts are prepared by reacting acetoacetamide with an S-O compound of the formula I FSO2Y (I) wherein Y=F, Cl, -OSO2F or -OSO2Cl, preferably only F, in the presence of bases. The non-toxic salts-especially the potassium salt-are valuable synthetic sweeteners.