1949年Ziesecke报道了CO—H_2在ThO_2或ThO_2—Al_2O_3催化剂上反应制备支链化合物的消息。我们报道的是使用稀土金属的氧化物和钯助催化剂在高压和高温条件下(P=400巴,T=410～475℃)来进行这一反应。表1表明某些反应产物,特别是C_4异构体和芳烃是按不同于Schulz—Flory分配的比例生成的。这种情况必然是根据 In 1949, Ziesecke reported the preparation of branched-chain compounds by reacting CO-H 2 over ThO 2 or ThO 2 -Al 2 O 3 catalysts. We report that this reaction is carried out using rare earth metal oxides and palladium cocatalysts under high pressure and temperature (P = 400 bar, T = 410-475 ° C). Table 1 shows that some of the reaction products, especially the C 4 isomers and aromatics, are generated at a ratio different from the Schulz-Flory distribution. This situation must be based on