分别用稀土金属配合物{(μ-η5:η1):η1-2-[(2,4,6-Me3C6H2)NCH2]C4H3N]LnN(SiMe3)2}2[Ln=Y(1),Nd(2),Sm(3),Dy(4),Er(5)]催化3种末端炔烃与N,N′-二异丙基碳二亚胺反应,得到了3种相应的脒产物。研究了不同条件下稀土配合物的催化活性,考察了温度、时间、催化剂用量、催化剂种类等因素对反应的影响。结果表明,该类配合物具有良好的催化活性,在以THF为溶剂、温度为60℃、时间为6h、配合物3为催化剂、催化剂的摩尔用量比为3%的条件下,反应产率最高。 (Ln = Y (1), Nd (Si) 3) with the rare earth metal complexes {(μ-η5: η1): η1-2 - [(2,4,6-Me3C6H2) NCH2] C4H3N] 2, Sm (3), Dy (4), Er (5)] catalyzed the reaction of the three terminal alkynes with N, N’-diisopropylcarbodiimide to give the corresponding three amidine products. The catalytic activities of the rare earth complexes under different conditions were investigated. The effects of temperature, time, catalyst dosage and catalyst type on the reaction were investigated. The results showed that this kind of complex has good catalytic activity. Under the condition of THF as solvent, temperature 60 ℃, reaction time 6h, complex 3 as catalyst and molar ratio of catalyst 3% .