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公开(公告)号:US5811559A
公开(公告)日:1998-09-22
申请号:US972681
申请日:1997-11-18
申请人: Helene LeFranc
发明人: Helene LeFranc
IPC分类号: B01J23/644 , C07B61/00 , C07C45/37 , C07C45/38 , C07C47/565 , C07D11/02
CPC分类号: C07C45/38
摘要: Hydroxybenzaldehydes, for example salicylaldehyde, are prepared in high yields by oxidizing the corresponding hydroxybenzyl alcohols, e.g., saligenol, with molecular oxygen or an oxygen-containing gas, in liquid phase, in an aqueous reaction medium containing an alkali, in the presence of (i) a catalytically effective amount of a platinum catalyst and (ii) a cocatalytically effective amount of boron and bismuth compounds.
摘要翻译: 通过在含有碱的水性反应介质中,在(α)的存在下,通过在含有碱的水性反应介质中,使分子氧或含氧气体的分子氧或含氧气体氧化相应的羟基苄醇,例如水杨醇,以高产率制备羟基苯甲醛,例如水杨醛, i)催化有效量的铂催化剂和(ii)助催化有效量的硼和铋化合物。
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公开(公告)号:US5689009A
公开(公告)日:1997-11-18
申请号:US387088
申请日:1995-02-13
申请人: Helene Lefranc
发明人: Helene Lefranc
IPC分类号: B01J23/644 , C07B61/00 , C07C45/37 , C07C45/38 , C07C47/565
CPC分类号: C07C45/38
摘要: Hydroxybenzaldehydes, for example salicylaldehyde, are prepared in high yields by oxidizing the corresponding hydroxybenzyl alcohols, e.g., saligenol, with molecular oxygen or an oxygen-containing gas, in liquid phase, in an aqueous reaction medium containing an alkali, in the presence of (i) a catalytically effective amount of a platinum catalyst and (ii) a cocatalytically effective amount of boron and bismuth compounds.
摘要翻译: 通过在含有碱的水性反应介质中,在(α)的存在下,通过在含有碱的水性反应介质中,使分子氧或含氧气体的分子氧或含氧气体氧化相应的羟基苄醇,例如水杨醇,以高产率制备羟基苯甲醛,例如水杨醛, i)催化有效量的铂催化剂和(ii)助催化有效量的硼和铋化合物。
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