-
公开(公告)号:DE2961143D1
公开(公告)日:1981-12-10
申请号:DE2961143
申请日:1979-08-21
Applicant: BASF AG
Inventor: HORNER MICHAEL DR , NISSEN AXEL DR , LAURER PETER RUDOLF DR , IRGANG MATTHIAS DR , PASEDACH HEINRICH DR
IPC: B01J31/00 , C07B31/00 , C07B35/02 , C07B61/00 , C07C45/00 , C07C45/62 , C07C47/02 , C07C47/21 , C07C49/04 , C07C67/00
Abstract: Carbonyl compounds R1-CHR2-CHR3-CR4O (I, R1=H or an organic radical; R2-R4=H or C1-C4-alkyl) are prepared by selective hydrogenation of the alpha , beta -unsaturated carbonyl compounds R1-CR2=CR3-CR4O (II) in the liquid phase by means of hydrogen in the presence of a palladium catalyst and of from 15 to 50% by weight, based on (II), of a tertiary amine.
-
公开(公告)号:DE2729975A1
公开(公告)日:1979-01-18
申请号:DE2729975
申请日:1977-07-02
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , MOHR RUDOLF DR , NISSEN AXEL DR
Abstract: Prepn. of 2-methyl-2-hepten-6-one (I) comprises reacting 2-methyl-3-butene-2-ol (II) and an alkyl acetoacetate (III) in presence of an organic Al cpd. (IV) at 140-180 degrees C using a mole ratio of (II):(III) of 0.8-2, pref. 1-1.5:1. The concn. of (III) in the reaction mixt. is is not >15 wt. % for more than 2 hrs. pref. 1 hr. The concn. of (III) is esp. is not >5 wt. % and a specified (IV) is Al triphenoxide. Yields are >90% and formation of resins, acetone, isoprene and prenyl acetoacetate is minimised. Use of aromatic rather than aliphatic (IV) avoids formation of an (unspecified) impurity which is difficult to separate.
-
公开(公告)号:CH512412A
公开(公告)日:1971-09-15
申请号:CH1687970
申请日:1968-08-21
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , HOFFMANN WERNER DR , POMMER HORST DR
-
公开(公告)号:CH507891A
公开(公告)日:1971-05-31
申请号:CH1216068
申请日:1968-08-13
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , HOFFMANN WERNER DR , POMMER HORST DR
-
公开(公告)号:CH505770A
公开(公告)日:1971-04-15
申请号:CH1843368
申请日:1968-12-10
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , HOFFMANN WERNER DR , HIMMELE WALTER DR
-
公开(公告)号:CH503104A
公开(公告)日:1971-02-15
申请号:CH1100868
申请日:1968-07-23
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , FREYSCHLAG HERWIG DR , HOFFMANN WERNER DR , POMMER HORST DR
-
公开(公告)号:CH502289A
公开(公告)日:1971-01-31
申请号:CH1101068
申请日:1968-07-23
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , FISCHER ROMAN DR , HOFFMANN WERNER DR
-
公开(公告)号:DE1927528A1
公开(公告)日:1970-12-03
申请号:DE1927528
申请日:1969-05-30
Applicant: BASF AG
Inventor: KIEFER HANS DR , PANDER HANS JOACHIM , HOFFMANN WERNER DR , CLAUS BERNHARD DR , PASEDACH HEINRICH DR
IPC: C07C209/16 , B26B3/08 , B29C37/00 , C07C67/00 , C07C209/00 , C07C209/62 , C07C211/23 , C07C85/00
-
公开(公告)号:CH433229A
公开(公告)日:1967-04-15
申请号:CH953064
申请日:1964-07-21
Applicant: BASF AG
Inventor: SCHNEIDER KURT DR , PASEDACH HEINRICH DR , POMMER HORST DR
IPC: C07C45/60 , C07C47/263 , C07D309/06 , C11B9/00 , C07C47/20
-
公开(公告)号:CH326782A
公开(公告)日:1957-12-31
申请号:CH326782D
申请日:1954-03-23
Applicant: BASF AG
Inventor: REPPE WALTER DR , PASEDACH HEINRICH DR , DREHER ERICH DR , AMANN AUGUST DR
IPC: C07D295/084
-
-
-
-
-
-
-
-
-