PROCESS FOR PREPARING 2,1,3-THIADIAZIN-4-ONE-2,2-DIOXIDE

    公开(公告)号:KR810001008B1

    公开(公告)日:1981-08-29

    申请号:KR780000595

    申请日:1978-03-08

    Applicant: BASF AG

    Abstract: Title compd. (I; R1,R2,R3 = H, unsubstituted aliphatic group, cycloaromatic group, halogen, alkyl, alkoxy, haloalkoxy, alkylsulfonyl, dialkylamidosulfonyl substituted aliphatic group, cyclo aliphatic group; R1 = dialkylamino; R3 = halogen, trifluoromethyl; R4 = H, alkyl; Y = -CH=, -N= ), useful for protecting corps, were prepd. by cyclization of sulfamates(III) with acid halide or acid anhydride. The sulfamates was prepd. by reacting aminopyridine carboxyamide derives. (II) with SO3, sulfonic chloride or additive of SO3 and organic base in the presence of organic base.

    3.
    发明专利
    未知

    公开(公告)号:SE7802669L

    公开(公告)日:1978-09-11

    申请号:SE7802669

    申请日:1978-03-08

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    4.
    发明专利
    未知

    公开(公告)号:DK145378C

    公开(公告)日:1983-04-05

    申请号:DK105178

    申请日:1978-03-09

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    6.
    发明专利
    未知

    公开(公告)号:BR7801459A

    公开(公告)日:1978-10-31

    申请号:BR7801459

    申请日:1978-03-09

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    8.
    发明专利
    未知

    公开(公告)号:DK105178A

    公开(公告)日:1978-09-11

    申请号:DK105178

    申请日:1978-03-09

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    9.
    发明专利
    未知

    公开(公告)号:SE436743B

    公开(公告)日:1985-01-21

    申请号:SE7802669

    申请日:1978-03-08

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

    10.
    发明专利
    未知

    公开(公告)号:DK145378B

    公开(公告)日:1982-11-08

    申请号:DK105178

    申请日:1978-03-09

    Applicant: BASF AG

    Abstract: New and valuable process for the manufacture of 2,1,3-thiadiazin-4-one-2,2-dioxide derivatives by reaction of anthranilic acid amide or aminopyridine carboxamide derivatives with sulfur trioxide derivatives to give the sulfamic acid salts, followed by cyclization of these salts.

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