In competition experiments with n-heptanal and diethylketone as substrates the reagents (CH3)2M(OiPr)3, CH3MCl4 (M = Nb, Ta), and nBuNbCl4 react exclusively or very selectively with the aldehyde.
在竞争实验用正庚和
二乙酮作为底物试剂(CH 3)2 M(OiPr)3,CH 3 MCl 4(M =
铌,
钽),和nBuNbCl 4只或非常选择性地与反应醛。