申请人:SHOWA DENKO K.K.
公开号:US20030098229A1
公开(公告)日:2003-05-29
The present invention relates to a catalyst useful for a photooxidation reaction and also relates to a novel process for producing aldehydes, particularly aromatic aldehydes, which are useful as an intermediate for the production of agrochemical and medical preparations. The catalyst is particularly suitable for the oxidation of a methyl group difficult to oxidize.
A photooxidation catalyst according to the invention is a halogenated aromatic nitrile represented by the following formula (1):
1
(wherein X represents a chlorine atom or a fluorine atom, m represents an integer of 1 to 5, n represents an integer of 1 to 5, m+n≦6, and when n is 2 or more, Xs may be the same or different).
本发明涉及一种用于光氧化反应的催化剂,以及一种用于生产醛类化合物的新型工艺,特别是芳香族醛类化合物,这些化合物作为农药和医药制剂的中间体具有重要用途。该催化剂特别适用于难以氧化的甲基基团的氧化反应。根据本发明,一种光氧化催化剂为以下公式(1)所表示的卤代芳香族腈:1(其中X表示氯原子或氟原子,m表示1到5的整数,n表示1到5的整数,m+n≤6,当n为2或更多时,X可以相同或不同)。