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公开(公告)号:CA672883A
公开(公告)日:1963-10-22
申请号:CA672883D
Applicant: HOECHST AG
Inventor: BANDER OTTO E , HORNIG LOTHAR , PASZTHORY EMMERICH , SCHWENK ULRICH
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公开(公告)号:AU4106878A
公开(公告)日:1980-05-01
申请号:AU4106878
申请日:1978-10-26
Applicant: HOECHST AG
Inventor: PASZTHORY EMMERICH , ALBERS ARNOLD , RINGEL ERICH , ELINKMANN HANS-GERD
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公开(公告)号:CA751537A
公开(公告)日:1967-01-24
申请号:CA751537D
Applicant: HOECHST AG
Inventor: GERSTENBERG HELMUT , BACHMANN DITMAR , PASZTHORY EMMERICH
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公开(公告)号:CA672885A
公开(公告)日:1963-10-22
申请号:CA672885D
Applicant: HOECHST AG
Inventor: STEINMETZ ALFONS , PROBST OTTO , HORNIG LOTHAR , PASZTHORY EMMERICH
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公开(公告)号:CA672882A
公开(公告)日:1963-10-22
申请号:CA672882D
Applicant: HOECHST AG
Inventor: RIEMENSCHNEIDER WILHELM , PROBST OTTO , HORNIG LOTHAR , STEINMETZ ALFONS , PASZTHORY EMMERICH
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公开(公告)号:CA1048546A
公开(公告)日:1979-02-13
申请号:CA240271
申请日:1975-11-24
Applicant: HOECHST AG
Inventor: PASZTHORY EMMERICH , MEES BERNHARD , HILLE ERNST
IPC: C07B61/00 , C07C20060101 , C07C67/00 , C07C213/00 , C07C213/02 , C07C217/84 , C07C93/14
Abstract: PROCESS FOR PREPARING 4-CHLORO-2,5-DIMETHOXY ANILINE The catalytic hydrogenation of 4-chloro-2,5-dimethoxy nitrobenzene can be performed in water with a nickel catalyst if the average particle size is below 0.1 mm. The resulting aniline is reacted with diketene and the so-obtained N-aceto-acetyl derivative is an azoic coupling component.
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公开(公告)号:AU496793B2
公开(公告)日:1978-10-26
申请号:AU1340876
申请日:1976-04-28
Applicant: HOECHST AG
Inventor: PASZTHORY EMMERICH , HILLE ERNST , SEIFERT KARL-GERHARD , ZIMMERMANN VINCENZ
IPC: C07C235/80 , C07C67/00 , C07C231/00 , C07C231/04 , C07C233/16 , C07C103/38 , C09B29/00 , C09B31/00 , C09B33/00 , C09B35/00
Abstract: N-acetoacetyl-2,5-dimethoxy-4-chloroanilide is obtained in high yield and purity by suspending 2,5-dimethoxy-4-chloroaniline in water and adding the complete amount of diketene necessary altogether at the beginning of the reaction. The product is obtained in a purity allowing its use as an azoic coupling component without purification.
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公开(公告)号:CA786787A
公开(公告)日:1968-06-04
申请号:CA786787D
Applicant: HOECHST AG
Inventor: BRENNEISEN ERICH , HOYER ERNST , PASZTHORY EMMERICH , LINDNER HELMUT
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公开(公告)号:CA761467A
公开(公告)日:1967-06-20
申请号:CA761467D
Applicant: HOECHST AG
Inventor: BACHMANN DITMAR , PASZTHORY EMMERICH , SCHROTT ERWIN , GERSTENBERG HELMUT
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