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    Process for preparing 3,4-dihydro-1,2,3-oxathiazine-4-ones
    1.
    发明授权
    Process for preparing 3,4-dihydro-1,2,3-oxathiazine-4-ones 失效
    制备3,4-二氢-1,2,3-恶噻嗪-4-酮的方法

    公开(公告)号：US3926981A

    公开(公告)日：1975-12-16

    申请号：US47465874

    申请日：1974-05-30

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  SCHNABEL HORST ,  JENSEN HARALD

    IPC: A23L27/30 ,  C07D291/06

    CPC classification number: C07D291/06

    Abstract: Process for preparing 3,4-dihydro-1,2,3-oxathiazine-4-ones and their salts which comprises the addition of chlorosulfonylisocyanate to a Beta -ketocarboxylic acid tert.alkyl ester, conversion of the addition product obtained at temperatures of from 40* to 100*C by means of separation of CO2 and alkylene into the Beta -ketocarboxylic acid amide-Nsulfochloride, by cyclization of same in an aprotic diluent by means of separation of hydrogen chloride - either in the presence of acid-binding agents or by heating up to temperatures above 50*C - and by conversion of the reaction products obtained in known manner into oxathiazinones or salts thereof.

    Abstract translation: 制备3,4-二氢-1,2,3-恶噻嗪-4-酮及其盐的方法，其包括向β-酮羧酸叔烷基酯中加入氯磺酰基异氰酸酯，转化在 通过将CO 2和亚烷基分离成β-酮羧酸酰胺-N-磺酰氯，通过在非质子稀释剂中通过氯化氢的分离将其分离，从而在40℃至100℃下， 结合剂或通过加热至高于50℃的温度，以及通过将以已知方式获得的反应产物转化成氧噻嗪酮或其盐。

    3,4-dihydro-1 ,2,3-oxathiazin-4-ones and their preparation
    2.
    发明授权
    3,4-dihydro-1 ,2,3-oxathiazin-4-ones and their preparation 失效
    3,4-二氢-1,2,3-氧化四氮杂-4及其制备

    公开(公告)号：US3689486A

    公开(公告)日：1972-09-05

    申请号：US3689486D

    申请日：1971-01-07

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  JENSEN HARALD

    IPC: C07D291/06 ,  C07D95/00

    CPC classification number: C07D291/06

    Abstract: 3,4-Dihydro-1,2,3-oxathiazinones, a new class of chemical compounds having a ring system being hitherto unknown, are obtained when reacting fluoro sulfonyl isocyanates with ketocompounds of alkynes. The compounds having low-molecular substituents are artificial sweetening agents and the derivatives having hydrophobic substituents are interfacial active agents. All of the new compounds are organic intermediates having a plurality of reactive groups.

    Abstract translation: 当氟代磺酰基异氰酸酯与炔的酮基化合物反应时，获得了一类具有迄今未知的环系的新一类化合物。 具有低分子取代基的化合物是人造甜味剂，具有疏水取代基的衍生物是界面活性剂。 所有新化合物都是具有多个反应性基团的有机中间体。

    Process for the preparation of 3,4-dihydro-1,2,3-oxathiazin-4-ones
    3.
    发明授权
    Process for the preparation of 3,4-dihydro-1,2,3-oxathiazin-4-ones 失效
    制备3,4-二氢-1,2,3-氧代西他嗪-4-酮的方法

    公开(公告)号：US3689485A

    公开(公告)日：1972-09-05

    申请号：US3689485D

    申请日：1971-01-07

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  LOHAUS GERHARD

    IPC: C07D291/06 ,  C07D95/00

    CPC classification number: C07D291/06

    Abstract: 3,4-DIHYDRO-1,2,3-OXATHIAZINONES ARE OBTAINED WHEN REACTING KETONES WITH ARYLOXYSULFONYL ISOCYANATES. THE COMPOUNDS HAVING LOW-MOLECULAR SUBSTITUENTS ARE ARTIFICIAL SWEETENING AGENTS AND THE DERIVATIVES HAVING HYDROPHOBIC SUBSTITUENTS ARE INTERFACIAL ACTIVE AGENTS. ALL OF THE NEW COMPOUNDS ARE ORGANIC INTERMEDIATES HAVING A PLURALITY OF REACTIVE GROUPS.

    3,4-Dihydro-1,2,3-oxathiazine-4-ones and a process for their preparation
    4.
    发明授权
    3,4-Dihydro-1,2,3-oxathiazine-4-ones and a process for their preparation 失效
    3,4-二氢-1,2,3-恶噻嗪-4-酮及其制备方法

    公开(公告)号：US3926976A

    公开(公告)日：1975-12-16

    申请号：US36788873

    申请日：1973-06-07

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  JENSEN HARALD ,  LUCK ERICH

    IPC: A23L27/30 ,  C07D291/06 ,  C07D291/08

    CPC classification number: C07D291/08 ,  A23L27/30 ,  C07D291/06

    Abstract: 3,4-Dihydro-1,2,3-oxathiazinones, a class of chemical compounds having a ring system, are obtained by converting the enolether of a Beta -ketocarboxylic acid amide-N-sulfone to the enol and treating the enol with an aqueous base. The compounds and their salts are artificial sweetening agents. All of the compounds are organic intermediates having a plurality of reactive groups.

    Abstract translation: 通过将β-酮羧酸酰胺-N-砜的烯醇转化成烯醇并用烯醇处理烯醇来获得具有环系的一类化合物的3,4-二氢-1,2,3-氧杂二恶烷酮 水基。 化合物及其盐是人造甜味剂。 所有这些化合物都是具有多个反应性基团的有机中间体。

    Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazine-4-one-2,2-dioxide
    5.
    发明授权
    Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazine-4-one-2,2-dioxide 失效
    制备6-甲基-3,4-二氢-1,2,3-恶噻嗪-4-酮-2,2-二氧化物的方法

    公开(公告)号：US3917589A

    公开(公告)日：1975-11-04

    申请号：US42962873

    申请日：1973-12-28

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  JENSEN HARALD

    IPC: C07D291/06

    CPC classification number: C07D291/06

    Abstract: 6-Methyl-3,4-dihydro-1,2,3-oxathiazine-4-one-2,2-dioxide is prepared by reacting an acetoacetic acid tert. alkyl ester with fluorosulfonyl-isocyanate, optionally in the presence of an aprotic diluent, transforming the addition compound obtained into the acetoacetic acid amide-N-sulfofluoride by splitting off carbon dioxide and alkene at 60* to 100*C. and effecting cyclization of the fluoride with aqueous lye.

    Abstract translation: 6-甲基-3,4-二氢-1,2,3-恶噻嗪-4-酮-2,2-二氧化物是通过使乙酰乙酸叔丁酯 烷基酯与氟磺酰基异氰酸酯，任选在非质子稀释剂的存在下，通过在60℃至100℃分解二氧化碳和烯烃将所得到的加成化合物转化成乙酰乙酸酰胺-N-磺酰氟，并使 氟化物与碱性水溶液。

    9.
    发明专利
    未知

    公开(公告)号：DK42394A

    公开(公告)日：1994-04-13

    申请号：DK42394

    申请日：1994-04-13

    Applicant: HOECHST AG

    Inventor： CLAUSS KARL ,  LINKIES ADOLF ,  RAUSCHLING DIETER

    IPC: A23L27/30 ,  B01J31/00 ,  B01J31/02 ,  B01J31/24 ,  C07B61/00 ,  C07C303/34 ,  C07C307/02 ,  C07C311/46 ,  C07D291/06

    Abstract: 6-Methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide is prepared by (a) reacting, in an inert organic solvent, a salt of sulfamic acid, which is at least partially soluble therein, with at least approximately the equimolar amount of an acetoacetylating agent, in the presence of an amine or phosphine catalyst, and by cyclizing the acetoacetamide-N-sulfonate which is formed in this reaction, or the free sulfonic acid, (b) by the action of at least approximately the equimolar amount of SO3, where appropriate in an inert inorganic or organic solvent, to give 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide, which is produced in the form of the acid in this reaction; it is possible, if desired, to obtain from the acid form (c) the appropriate salts by neutralization with bases. The non-toxic salts - in particular the potassium salt - are valuable synthetic sweeteners.

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