Rhodium(I)- and Palladium(0)-Catalyzed Carbonylation of Triarylbismuthines with Carbon Monoxide via a Possible Oxidative Addition of a Carbon–Bismuth Bond to Rhodium(I) and Palladium(0)
作者:Chan Sik Cho、Yasuharu Yoshimori、Sakae Uemura
DOI:10.1246/bcsj.68.950
日期:1995.3
similar reactions are carried out in methanol in the presence of a catalytic amount of palladium(II) acetate together with potassium carbonate in place of the rhodium compound, methyl benzoates are formed as the sole carbonylation products. The oxidative addition of a carbon–bismuth bond to rhodium(I) and palladium(0) is proposed as the key step of these carbonylation reactions.
在催化量的铑化合物(如 [RhCl(CO)2]2、RhCl3·3H2O 和 [RhCl(COD)] 存在下,三芳基铋在常压下在乙腈中与一氧化碳 (CO) 反应,温度为 25 °C 2 以高产率得到相应的二芳基酮。如果使用甲醇作为溶剂,还会产生苯甲酸甲酯。在催化量的乙酸钯 (II) 和碳酸钾代替铑化合物存在下,在甲醇中进行类似的反应时,会形成苯甲酸甲酯作为唯一的羰基化产物。碳-铋键与铑(I)和钯(0)的氧化加成被认为是这些羰基化反应的关键步骤。