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    • 108. 发明授权
    • Process for producing branched aldehydes
    • 生产支化醛的方法
    • US5932761A
    • 1999-08-03
    • US45772
    • 1998-03-23
    • Toshihiro OmatsuMasahiko KitayamaTakashi Onishi
    • Toshihiro OmatsuMasahiko KitayamaTakashi Onishi
    • C07C67/293C07C255/17C07C67/38C07C67/36
    • C07C255/17C07C67/293
    • It is provided a process for industrially advantageously producing a branched aldehyde represented by the formula; ##STR1## �wherein Y represents an acyl group of two or more carbon atoms; and X represents an acyloxymethyl group represented by --CH.sub.2 OY' (where Y' represents an acyl group of two or more carbon atoms), 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; ##STR2## (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 (.upsilon.-value) of 2080 to 2090 cm.sup.-1 or with a steric parameter (.theta.-value) of 150 to 180.degree..
    • 提供了一种工业上有利地生产由式表示的支链醛的方法; [其中Y表示两个或更多个碳原子的酰基; X表示-CH 2 YY'(其中Y'表示2个以上碳原子的酰基),氰基或烷氧基羰基]的酰氧基甲基,其可用作药物和农药的中间体,其包括使烯属 由下式表示的化合物: (其中Y和X与上述定义相同)在具有2080至2090cm -1的电子参数(上限)值的铑化合物和叔有机磷化合物存在下与氢气和一氧化碳的反应 或具有150至180°的空间参数(θ值)。