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公开(公告)号:DE881500C
公开(公告)日:1953-06-29
申请号:DEB0007078
申请日:1941-10-21
Applicant: BASF AG
Inventor: KROEPER HUGO DR
IPC: C07C17/093 , C07C43/12
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公开(公告)号:DE876843C
公开(公告)日:1953-05-18
申请号:DEB0006998
申请日:1941-10-10
Applicant: BASF AG
Inventor: KROEPER HUGO DR
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公开(公告)号:DE920244C
公开(公告)日:1954-11-18
申请号:DEB0022695
申请日:1952-10-31
Applicant: BASF AG
Inventor: KROEPER HUGO DR , KUTEPOW NIKOLAUS V DR , HUCHLER OTTO DR , KOELSCH WALTER DR , HIMMELE WALTER DR
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公开(公告)号:DE855561C
公开(公告)日:1952-11-13
申请号:DEB0006586
申请日:1941-09-27
Applicant: BASF AG
Inventor: KROEPER HUGO DR
IPC: C07D295/023
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公开(公告)号:DE850608C
公开(公告)日:1952-09-25
申请号:DEB0006334
申请日:1944-03-04
Applicant: BASF AG
Inventor: KROEPER HUGO DR
IPC: C07C45/52 , C07C49/17 , C07C49/185
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公开(公告)号:DE848355C
公开(公告)日:1952-09-04
申请号:DEB0006422
申请日:1943-05-08
Applicant: BASF AG
Inventor: REPPE WALTER DR , KROEPER HUGO DR
IPC: C07C51/14 , C07C51/56 , C07C53/122 , C07C53/126 , C07C55/21 , C07C61/08
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公开(公告)号:AT257562B
公开(公告)日:1967-10-10
申请号:AT746065
申请日:1965-08-12
Applicant: BASF AG
Inventor: KROEPER HUGO DR , WEITZ HANS-MARTIN DR , PLATZ ROLF DR , SCHLOEMER KARL DR
Abstract: Tertiary alkyl acrylates or methacrylates of the formula wherein R1 denotes an H atom or the -CH3 group and the R2 radicals which may be the same or different denote an alkyl group having from 1 to 4 C atoms, are prepared by reacting acrylic or methacrylic acid with a tertiary olefin of formula where R2 has the above meaning and R3 denotes an alkylidene group with 1 to 4 C atoms, in the presence of an active bleaching earth containing from 0.005 to 0.1 milliequivalents per gram of free titratable acid at atmospheric or superatmospheric pressure and at a temperature of from 0 DEG C. to 40 DEG C. A suitable bleaching earth comprises 50 to 70% of SiO2, 10 to 30% of Al2O3, 2 to 8% of Fe2O3, 1 to 9% of MgO and small amounts of the oxides of the other alkaline earth metals (all percentages are by weight). Examples describe the production of tertiary-butyl acrylate.
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公开(公告)号:DE921936C
公开(公告)日:1955-01-07
申请号:DEB0023921
申请日:1953-01-24
Applicant: BASF AG
Inventor: KROEPER HUGO DR , HAEUBER HANS DR , HAGEN WERNER DR
IPC: C07C45/49
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公开(公告)号:DE895767C
公开(公告)日:1953-11-05
申请号:DEB0016593
申请日:1951-09-04
Applicant: BASF AG
Inventor: KROEPER HUGO DR
IPC: C07C69/54
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公开(公告)号:DE879987C
公开(公告)日:1953-06-18
申请号:DEB0007499
申请日:1940-03-13
Applicant: BASF AG
Inventor: REPPE WALTER DR , KROEPER HUGO DR
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