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Patent Agency Ranking
公开(公告)号：DK173578A
公开(公告)日：1978-10-22
申请号：DK173578
申请日：1978-04-20
Applicant: HOECHST AG
Inventor： CLAUSS K , KUEHLEIN K , EMMEL L , WALTERSDORFER A
IPC: A01N43/44 , A01N55/00 , C07D205/08 , C07D205/09 , A01N
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公开(公告)号：DK135123C
公开(公告)日：1977-08-15
申请号：DK326775
申请日：1975-07-17
Applicant: HOECHST AG
IPC: A23L27/30 , C07D291/06
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公开(公告)号：DK134644C
公开(公告)日：1977-05-16
申请号：DK326875
申请日：1975-07-17
Applicant: HOECHST AG
IPC: A23L27/30 , C07D291/06 , C07D291/08
Abstract: The potassium salt practically free of fluoride of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide is prepared by cyclization of acetoacetamide-N-sulfofluoride with at least two moles potassium hydroxide, potassium methylate or a mixture of potassium hydroxide and potassium methylate per mole of sulfofluoride in methanol as solvent containing less than 50 % by weight of water at a temperature of from -20 DEG to +60 DEG C and separating the crystalline potassium salt of the oxathiazinone dioxide from the reaction solution. The compound obtained has a pure sweet taste.
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公开(公告)号：DK135123B
公开(公告)日：1977-03-07
申请号：DK326775
申请日：1975-07-17
Applicant: HOECHST AG
IPC: A23L27/30 , C07D291/06
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公开(公告)号：DK134644B
公开(公告)日：1976-12-13
申请号：DK326875
申请日：1975-07-17
Applicant: HOECHST AG
IPC: A23L27/30 , C07D291/06 , C07D291/08
Abstract: The potassium salt practically free of fluoride of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide is prepared by cyclization of acetoacetamide-N-sulfofluoride with at least two moles potassium hydroxide, potassium methylate or a mixture of potassium hydroxide and potassium methylate per mole of sulfofluoride in methanol as solvent containing less than 50 % by weight of water at a temperature of from -20 DEG to +60 DEG C and separating the crystalline potassium salt of the oxathiazinone dioxide from the reaction solution. The compound obtained has a pure sweet taste.
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