The invention relates to a process for the co-production of carboxylic acids of formula R1COOH and/or R2COOH and carboxylic acids of the formula R'CH2COOH and/or R2CH2COOH by reacting one or more compounds of the formula R1XR2 in which X represents a
moiety and in which R1, R2 and R3 represent similar or dissimilar hydrocarbon moieties which may be substituted with one or more inert substituents, with carbon monoxide and hydrogen in the presence of a rhodium catalyst and an iodide and/or bromide source, characterized in that the reaction is carried out under virtually anhydric conditions and in the presence - per mole of the compound R1XR2 - of at least 2 moles of a carboxylic acid of the formula R4COOH, in which R4 represents a hydrocarbon moiety which may be substituted with one or more inert substituents.
本发明涉及一种联合生产式 R1COOH 和/或 R2COOH 的
羧酸和式 R'CH2COOH 和/或 R2CH2COOH 的
羧酸的工艺,该工艺是将一种或多种式 R1XR2 的化合物(其中 X 代表一个基团,R1、R2 和 R3 代表可被一个或多个惰性取代基取代的相似或不相似的烃基团)与
一氧化碳和氢在催化剂存在下进行反应。
其中 X 代表分子,R1、R2 和 R3 代表可被一个或多个惰性取代基取代的相似或不 同的烃基,在
铑催化剂和
碘源和/或
溴源存在下,与
一氧化碳和
氢气反应、其特征在于该反应是在几乎无
水的条件下进行的,每摩尔化合物 R1XR2 至少含有 2 摩尔式 R4COOH 的
羧酸,其中 R4 代表可被一个或多个惰性取代基取代的烃基。