申请人:KURARAY CO., LTD.
公开号:EP0867427A1
公开(公告)日:1998-09-30
It is provided a process for industrially advantageously producing a branched aldehyde represented by the formula;
[wherein Y represents an acyl group of two or more carbon atoms; and X represents an acyloxymethyl group represented by -CH2OY' (where Y' represents an acyl group of two or more carbon atoms), a cyano group or an alkoxycarbonyl group] which is useful as an intermediate for pharmaceuticals and agricultural chemicals, comprising subjecting an olefinic compound represented by the following formula;
(wherein Y and X are the same as defined above), to the reaction with hydrogen and carbon monoxide in the presence of a rhodium compound and a tertiary organic phosphorus compound with an electronic parameter (ν-value) of 2080 to 2090 cm-1 or with a steric parameter (θ-value) of 150 to 180°.
本发明提供了一种工业化生产支链醛的工艺,该支链醛由式;
[其中 Y 代表两个或两个以上碳原子的酰基;X 代表由 -CH2OY'(其中 Y'代表两个或两个以上碳原子的酰基)、氰基或烷氧羰基代表的酰氧基甲基]表示的支链醛,该支链醛可用作药物和农用化学品的中间体,其工艺包括将由下式表示的烯烃化合物;
(其中 Y 和 X 与上述定义相同),在铑化合物和电子参数(ν 值)为 2080 至 2090 cm-1 或立体参数(θ 值)为 150 至 180°的三级有机磷化合物存在下,与氢气和一氧化碳反应。