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公开(公告)号:US5939581A
公开(公告)日:1999-08-17
申请号:US915164
申请日:1997-08-20
申请人: August John Muller , Joseph Stanton Bowers, Jr. , John Robert Ira Eubanks , Carey Cecil Geiger , John Gabriel Santobianco
发明人: August John Muller , Joseph Stanton Bowers, Jr. , John Robert Ira Eubanks , Carey Cecil Geiger , John Gabriel Santobianco
CPC分类号: C07C51/27 , C07C29/175 , C07C45/62 , C07C51/60
摘要: Processes for preparing aromatic carboxylic acids. Cinnamaldehyde is hydrogenated to produce a mixture of hydrogenation products, namely, hydrocinnamaldehyde and hydrocinnamic alcohol. The mixture is then oxidized using a suitable oxidizing agent to substantially completely convert both hydrocinnamaldehyde and hydrocinnamic alcohol to hydrocinnamic acid.
摘要翻译: 制备芳香族羧酸的方法。 将肉桂醛氢化以产生氢化产物,即氢化肉桂醛和氢化肉桂醇的混合物。 然后使用合适的氧化剂将混合物氧化,以将氢化肉桂醛和氢化肉桂醇两者基本上完全转化成氢化肉桂酸。
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公开(公告)号:US5907046A
公开(公告)日:1999-05-25
申请号:US920171
申请日:1997-08-25
申请人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
发明人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
IPC分类号: C07D335/12 , C07D335/16 , C08F2/50 , G03F7/031 , C07D335/08
CPC分类号: C08F2/50 , C07D335/16 , G03F7/031
摘要: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.
摘要翻译: 公开了一种制备噻吨酮及其衍生物的方法。 在此过程中,在硫酸的存在下,诸如异丙基苯的芳族化合物与硫代水杨酸(TSA)或二硫代水杨酸(DTSA)反应。 然后在减压下蒸馏含有噻吨酮或其衍生物的反应混合物以回收噻吨酮化合物。
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公开(公告)号:US5916984A
公开(公告)日:1999-06-29
申请号:US918147
申请日:1997-08-25
申请人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
发明人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
IPC分类号: C07D335/12 , C07D335/16 , C08F2/50 , G03F7/031 , C08F2/00 , C08F2/46 , G03C1/725
CPC分类号: C08F2/50 , C07D335/16 , G03F7/031
摘要: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.
摘要翻译: 公开了一种制备噻吨酮及其衍生物的方法。 在此过程中,在硫酸的存在下,诸如异丙基苯的芳族化合物与硫代水杨酸(TSA)或二硫代水杨酸(DTSA)反应。 然后在减压下蒸馏含有噻吨酮或其衍生物的反应混合物以回收噻吨酮化合物。
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公开(公告)号:US5712401A
公开(公告)日:1998-01-27
申请号:US641165
申请日:1996-04-29
申请人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
发明人: Amy Lisa Bearson , John Robert Ira Eubanks , Alan Daniel Farmer , Franklin Dewitt Ford , Diana Boney Haydel , August John Muller
IPC分类号: C07D335/12 , C07D335/16 , C08F2/50 , G03F7/031
CPC分类号: C08F2/50 , C07D335/16 , G03F7/031
摘要: A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.
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