双胺基桥联双酚二价镱化合物YbL(ONNO)(THF)2(L(ONNO)=Me2NCH2CH2N(CH2-2-O-3,5-C6H2(tBu)2)2)(I)可作为催化剂催化胺和腈生成单取代脒的反应,产物收率为中等到良好.底物为芳香胺和腈时,反应活性较高.二价稀土化合物的结构对反应的选择性有很大影响.本文推测了反应的机理,并分离到了中间体苯腈分子和二价镱化合物配位形成的配合物Yb(OAr)2(C6H5CN)(THF)2(Ar=2,6-ditBu-4-MeC6H3). Diamino bridged bisphenol ytterbium compound YbL (ONNO) (THF) 2 (ONNO) = Me2NCH2CH2N (CH2-2-0-5,5-C6H2 (tBu) 2) 2) The catalyst catalyzed the reaction of amines and nitriles to form mono-substituted amidines, and the yield of products was moderate to good. When the substrates were aromatic amines and nitriles, the reactivity was higher. The structure of divalent rare earth compounds greatly influenced the selectivity of the reaction. The mechanism of the reaction was speculated and the complex Yb (OAr) 2 (C6H5CN) (THF) 2 (Ar = 2,6-ditBu-4-MeC6H3 ).