Mixed-metal reagents [NaMg(CH2SiMe3)3] (1) and [(THF)NaMg(NPh2)3(THF)] [3-(THF)2] can act as precatalysts to selectively promote the hydroamination/trimerization of isocyanates (RNCO) depending on the steric bulk of the R substituent.
混合
金属试剂[NaMg(CH2SiMe3)3] (1) 和[(THF)NaMg(NPh2)3(THF)] [3-(THF)2]可作为前催化剂,根据 R 取代基的立体体积,选择性地促进
异氰酸酯 (RNCO) 的氢化/三聚化。