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公开(公告)号:DE2652863B1
公开(公告)日:1978-05-18
申请号:DE2652863
申请日:1976-11-20
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , MOHR RUDOLF DR , NISSEN AXEL DR
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公开(公告)号:DE2227546A1
公开(公告)日:1974-01-03
申请号:DE2227546
申请日:1972-06-07
Applicant: BASF AG
Inventor: LIEBOLD GERT DR , OPPENLAENDER KNUT DR , BUETTNER EGON , FIKENTSCHER ROLF DR , MOHR RUDOLF DR
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公开(公告)号:CH484166A
公开(公告)日:1970-01-15
申请号:CH221668
申请日:1968-02-15
Applicant: BASF AG
Inventor: MOHR RUDOLF DR , SCHWARZMANN MATTHIAS DR , WOEHRLE HORST DR
IPC: C07D251/32 , C07D55/36
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公开(公告)号:CH634287A5
公开(公告)日:1983-01-31
申请号:CH1408177
申请日:1977-11-17
Applicant: BASF AG
Inventor: PASEDACH HEINRICH DR , MOHR RUDOLF DR , NISSEN AXEL DR
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公开(公告)号:DE1810262A1
公开(公告)日:1969-08-14
申请号:DE1810262
申请日:1968-11-22
Applicant: BASF AG
Inventor: MERTENS DR HEINRICH , MOHR RUDOLF DR , SCHWARZMANN DR MATHIAS
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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.
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公开(公告)号:CH445503A
公开(公告)日:1967-10-31
申请号:CH356665
申请日:1965-03-15
Applicant: BASF AG
Inventor: HAMPRECHT GUENTHER DR , LUDWIG VOGEL , SCHWARZMANN MATTHIAS DR , MOHR RUDOLF DR
IPC: C01C3/14 , C07D251/60 , F26B3/00 , C07D55/28
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公开(公告)号:AT250980B
公开(公告)日:1966-12-12
申请号:AT279065
申请日:1965-03-26
Applicant: BASF AG
Inventor: HAMPRECHT GUENTHER DR , VOGEL LUDWIG , SCHWARZMANN MATTHIAS DR , MOHR RUDOLF DR
IPC: C01C3/14 , C07D251/60 , F26B3/00
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