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以具有不同取代基的三苯基膦和亚磷酸酯为配体,铁磁性的钴铑双金属为催化剂,考察双环戊二烯氢甲酰化合成三环癸烷不饱和单醛的反应。结果表明,反应存在一定的诱导期,诱导期越短,反应速率越快;配体上的取代基对反应活性和产物选择性具有显著影响,吸电子取代基催化活性较高,诱导期较短,反应速率较快,但选择性较低。亚磷酸酯配体中以亚磷酸三苯酯效果最好,与三苯基膦相比,转化率和选择性均相对较低。在考察的配体中,三苯基膦作为配体,三环癸烷不饱和单醛选择性最高,达97%。
The reaction of tricyclodecane unsaturated monoaldehydes with hydroformylation of dicyclopentadiene was investigated by using triphenylphosphine and phosphite with different substituents as ligand and ferromagnetic cobalt rhodium bimetal as catalyst. The results showed that the reaction had some induction period, the shorter the induction period, the faster the reaction rate; the substituents on the ligand had a significant effect on the reactivity and product selectivity, the higher the electron-withdrawing substituent activity, the shorter the induction period , The reaction rate is faster, but the selectivity is lower. Phosphite ligand to triphenyl phosphite best, compared with the triphenylphosphine, the conversion and selectivity are relatively low. Among the investigated ligands, triphenylphosphine as a ligand, tricyclodecane unsaturated monoester selectivity of the highest, up to 97%.