A method of producing an aromatic ketone and an aromatic ketone composition containing it
申请人:TORAY INDUSTRIES, INC.
公开号:EP1053990A2
公开(公告)日:2000-11-22
In a method of producing an aromatic ketone an aromatic compound having an R-CH2 group ( R denotes an alkyl group, aryl group, allyl group or aralkyl group) is oxidised in liquid phase by an oxygen-containing gas in the presence of a catalyst comprising a heavy metal compound and at least one compound selected from (1) ammonia, (2) organic basic compounds and (3) onium halides while the water produced in the reaction is removed from the reaction solution.
An aromatic ketone composition produced by the process comprises the aromatic ketone and 10 ppm to 3 wt% of at least one compound selected from: a benzene derivative of the formula (II)
a vinylbenzene of the formula (III)
a benzaldehyde of the formula (IV)
where X is a substituent; n is zero or 1 to 5; R is alkyl, aryl, allyl or aralkyl and R1 is hydrogen, alkyl, aryl, allyl or aralkyl.
在一种生产芳香酮的方法中,具有 R-CH2 基团(R 表示烷基、芳基、烯丙基或芳烷基)的芳香化合物在液相中被含氧气体氧化,催化剂包括重金属化合物和至少一种选自(1)氨、(2)有机碱性化合物和(3)卤化铌的化合物,同时从反应溶液中除去反应中产生的水。
由该工艺制得的芳香酮组合物包括芳香酮和 10ppm 至 3 wt%的至少一种选自以下的化合物: 式 (II) 的苯衍生物
式 (III) 的乙烯基苯
式 (IV) 的苯甲醛
其中 X 为取代基;n 为零或 1 至 5;R 为烷基、芳基、烯丙基或芳烷基,R1 为氢、烷基、芳基、烯丙基或芳烷基。