摘要:
Methylzinc calixarene complex (1) reacts with one equivalent of B(C6F5)(3) to give the ion-pair (calixarene)-Zn delta+-Me-B(C6F5)(3)(delta-) complex (2), which readily undergoes the pentafluorophenyl group transfer to the zinc center. Reaction between 1 and H2O-B(C6F5)(3) results in the formation of the ion-pair (calixarene)Zn delta+-HO-B(C6F5)(3)(delta-) complex (4). In contrast to 2, complex 4 requires harsher reaction conditions to undergo the C6F5 group transfer, with the reaction taking place under the autocatalytic conditions.