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公开(公告)号:US4978802A
公开(公告)日:1990-12-18
申请号:US286788
申请日:1988-12-20
申请人: Philippe Campo , Panayotis Cocolios , Paul Dognin , Henry Ledon
发明人: Philippe Campo , Panayotis Cocolios , Paul Dognin , Henry Ledon
CPC分类号: C07C47/565 , C07C45/36
摘要: Aromatic aldehydes are produced by oxidation with oxygen of a para-cresol derivative in a solvent, in the presence of a base and a catalytic amount of a cobalt compound. The catalyst is a chelated complex of cobalt with a rigid structure that is slightly oxidizable selected from the group consisting of bis-(4-methylpyridine isoindolinato)cobalt(II) acetate, phthalocyaninatocobalt(II), and sulfophthalocyaninanatocobalt(II). The process is particularly suited to the production of p-hydroxy benzaldehydes.
摘要翻译: 通过在溶剂中,在碱和催化量的钴化合物的存在下,用对甲酚衍生物的氧气进行氧化来制备芳族醛。 催化剂是具有刚性结构的钴的螯合络合物,其可以选自双 - (4-甲基吡啶异吲哚啉)乙酸钴(II),酞菁钴(II)和磺基酞菁纳多钴(II)。 该方法特别适用于生产对羟基苯甲醛。