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公开(公告)号:DE1295550B
公开(公告)日:1969-05-22
申请号:DEB0082344
申请日:1965-06-10
Applicant: BASF AG
Inventor: PASEDACH , HEINRICH DR , PFAB , WOLFGANG DR , SCHNEIDER , KURT DR , WEHR , RUDOLF DR
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公开(公告)号:DE1288612B
公开(公告)日:1969-02-06
申请号:DEB0074398
申请日:1963-11-26
Applicant: BASF AG
IPC: C07D307/16 , C07D309/04 , C07D309/06
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公开(公告)号:DE1293779B
公开(公告)日:1969-04-30
申请号:DEB0076553
申请日:1964-04-28
Applicant: BASF AG
Inventor: HOFFMANN , WERNER DR , PASEDACH , HEINRICH DR
IPC: C07C17/10 , C07D309/10 , C07D309/20
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公开(公告)号:DE1286018B
公开(公告)日:1969-01-02
申请号:DEB0091038
申请日:1967-02-04
Applicant: BASF AG
IPC: C07C45/67 , C07C49/20 , C07C403/00
Abstract: Production of beta -ionone by reaction of 3,7-dimethylocten-(7)-yn-(1)-ol-(3) with a lower alkanol ester of acetoacetic acid at a temperature of from 100 DEG to 400 DEG C and treating the reaction mixture with an acid catalyst at a temperature of from 100 DEG to 400 DEG C and cyclizing the 6,10-dimethylundecatrien-(3,5,10)-one-(2) obtained by contacting with concentrated sulfuric acid at temperatures of from -30 to +20 DEG C.
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