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公开(公告)号:BR7705100A
公开(公告)日:1978-04-04
申请号:BR7705100
申请日:1977-08-03
Applicant: HOECHST AG
Inventor: HOYER E , STEUERNAGEL H , MEININGER F
IPC: C07C67/00 , C07C313/00 , C07C315/04 , C07C317/36 , C07D231/24 , C07D231/26 , C07D231/46 , C09B62/507 , C09B62/51 , C09B62/515 , D06P1/38 , C07C147/12 , C09B62/72
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公开(公告)号:BR7500650A
公开(公告)日:1975-11-11
申请号:BR7500867
申请日:1975-01-31
Applicant: HOECHST AG
Inventor: FEESS E , STEUERNAGEL H , ONG S
IPC: D06P3/84
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公开(公告)号:BR7808222A
公开(公告)日:1979-08-14
申请号:BR7808222
申请日:1978-12-14
Applicant: HOECHST AG
Inventor: STEUERNAGEL H
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公开(公告)号:BR7705098A
公开(公告)日:1978-04-04
申请号:BR7705098
申请日:1977-08-03
Applicant: HOECHST AG
Inventor: WAGNER D , HOYER E , STEUERNAGEL H
IPC: C09B43/24 , C09B62/503 , C09B62/72
Abstract: Improved process for the sulfatation of the hydroxy group of a beta -hydroxy-ethylsulfonyl group present in compounds selected from the dyestuff class which comprises carrying out the reaction in a machine operating with a kneading action and effect and with the use of only 1 to 5 times the equimolar amount of a concentrated sulfuric acid, of oleum or sulfur dioxide itself. The beta -sulfatoethylsulfonyl group containing dyestuffs, thus prepared have a high purity and are obtained in a high yield and esterification rate. Above all, the novel process is distinguished by a highly reduced salt and acid content of the waste water.
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公开(公告)号:BR7705101A
公开(公告)日:1978-03-28
申请号:BR7705101
申请日:1977-08-03
Applicant: HOECHST AG
Inventor: HOYER E , STEUERNAGEL H
IPC: C07D231/24 , C07D231/26 , C07D231/46 , C09B62/507 , C07D231/34 , C09B62/72
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7.
公开(公告)号:IN150125B
公开(公告)日:1982-07-24
申请号:IN1311CA1978
申请日:1978-12-08
Applicant: HOECHST AG
Inventor: STEUERNAGEL H
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公开(公告)号:BR7705099A
公开(公告)日:1978-04-04
申请号:BR7705099
申请日:1977-08-03
Applicant: HOECHST AG
Inventor: HOYER E , STEUERNAGEL H
IPC: C07C67/00 , C07C313/00 , C07C315/04 , C07C317/40 , C07D231/24 , C07D231/26 , C07D231/46 , C09B62/507 , C09B62/51 , D06P1/38 , C07C147/12 , C09B62/72
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公开(公告)号:ZA7500630B
公开(公告)日:1976-01-28
申请号:ZA7500630
申请日:1975-01-30
Applicant: HOECHST AG
Inventor: STEUERNAGEL H , FEESS E , ONG S
CPC classification number: D06P3/66 , D06P1/65125 , D06P1/6533 , D06P3/54 , D06P3/8252 , D06P5/2077 , Y10S8/933
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