Quinoline ring C-H bond activation in bis(3,5-di-tert -butylsalicylidene)- 8-aminoquinoline bis(trimethylsilyl)amido lanthanide complexes

摘要

Reaction of Ln[N(TMS)_2]_3 with a stoichiometric amount of HL (HL = 3,5-Bu~t_2-2-(OH)-C_6H _2CH=N-8-C_9H_6N) at 40 °C resulted in the new complexes L′Ln(THF)·THF (Ln = Y(1), Yb(2); L′ = [3,5-Bu ~t_2-2-(O)-C_6H_2CH=N-8-C _9H_6N 3,5-Bu~t_2-2-(O)-C _6H_2CH-(N)-8-C_9H_6N]~(3-)) via metalation of a ligand quinoline ring in L_2LnN(TMS)_2 formed in situ, followed by the attack of the newly formed aryl species at the imine group of the second ligand.