A complex interplay between the catalyst concentration and the reaction rate exists, as shown by kinetic studies, for the [Cp2 TiMe2 ]-catalyzed intermolecular hydroamination of alkynes. The reason for this is a reversible dimerization of the catalytically active species [Eq. (1)]. L1 , L2 =Cp (cyclopentadienyl), Tol-NH (Tol=4-MeC6 H4 , tolyl).
如动力学研究所示,对于[Cp 2 TiMe 2 ]催化的
炔烃的分子间加
氢胺,存在
催化剂浓度和反应速率之间的复杂相互作用。其原因是催化活性物质的可逆二聚化[方程式。(1)]。L 1,L 2= Cp(
环戊二烯基),Tol-NH(Tol = 4-MeC 6 H 4,
甲苯基)。