Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathi

Details Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathi Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathi

1975-07-16

1976-07-13

Ford, John M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D29106

Patent

active

039693481

ABSTRACT:
6-Methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide or the nontoxic salts thereof is prepared by reacting 6-methyl-2,3-dihydro-1,3-oxazin-2,4-dione-3-sulfo-fluoride of the formula ##EQU1## with at least 1 mole water per mole of fluoride to obtain acetoacetamide-N-sulfo-fluoride with splitting off of CO.sub.2, treating the acetoacetamide-N-sulfofluoride with an aqueous and/or alcoholic base and isolating the oxathiazinone or the salts thereof.

REFERENCES:
patent: 3926976 (1975-12-01), Clauss et al.
patent: 3926981 (1975-12-01), Clauss et al.

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