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公开(公告)号:US3833660A
公开(公告)日:1974-09-03
申请号:US24786772
申请日:1972-04-26
申请人: GEN ELECTRIC
发明人: SMITH W
IPC分类号: C07C45/56 , C07D319/18 , C07C47/50 , C07C47/56
CPC分类号: C07D319/18 , C07C45/565 , C07C47/565
摘要: AROMATIC ALDEHYDES CAN BE PREPARED BY EFFECTING REACTION BETWEEN AN AROMATIC COMPOUND CONTAINING A NUCLEARLY BONDED HYDROGEN AND HEXAMETHYLENETETRAMINE IN THE PRESENCE OF TRIFLUOROACETIC ACID. UPON HYDROLYSIS OF THE REACTION PRODUCT, THE DESIRED ARYL ALDEHYDES ARE OBTAINED.
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2.
公开(公告)号:US3948991A
公开(公告)日:1976-04-06
申请号:US246267
申请日:1972-04-21
CPC分类号: C07C45/74 , B01J23/92 , Y02P20/584
摘要: A cyclic aldol condensation process in which a silica-supported metallic tin catalyst is contacted in sequence with a carbonyl compound at an elevated temperature and with hydrogen for regeneration at a higher temperature.
摘要翻译: 环状醛醇缩合方法,其中二氧化硅负载的金属锡催化剂在升高的温度下与羰基化合物顺序接触,并在氢气下在较高温度下再生。
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