Process for preparing crystalline salts of acetoacetamide-N-sulf

Details Process for preparing crystalline salts of acetoacetamide-N-sulf Process for preparing crystalline salts of acetoacetamide-N-sulf

1985-03-19

1986-10-21

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14370

Patent

active

046184554

ABSTRACT:
Crystalline salts of acetoacetamide-N-sulfofluoride are prepared by reacting amidosulfofluoride H.sub.2 NSO.sub.2 F with diketene in the presence of inorganic bases, preferably alkali metal carbonates and/or hydrogencarbonates, in particular potassium carbonate, in an inert organic solvent.
The salts can be further processed with further base, for example with methanolic KOH, into salts of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide; the potassium salt, in particular, is important for use as a sweetener ("Acesulfame").

REFERENCES:
patent: 3689486 (1972-09-01), Clauss et al.
patent: 4052453 (1977-10-01), Pietsch et al.

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