Stepwise boron-to-zinc C6F5 group transfer in a Zn - calixarene system

Natalie Kotzen; Israel Goldberg; Arkadi Vigalok

doi:10.1021/om800904y

Stepwise boron-to-zinc C₆F₅ group transfer in a Zn - calixarene system

Natalie Kotzen, Israel Goldberg, Arkadi Vigalok^*

^*Corresponding author for this work

School of Chemistry

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Methylzinc calixarene complex (1) reacts with one equivalent of B(C ₆F₅)₃ to give the ion-pair (calixarene)-Zn ^δ+ - Me - B(C₆F₅)₃ ^δ- 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^δ+-HO-B(C₆F₅) ₃^δ- 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.

Original language	English
Pages (from-to)	929-932
Number of pages	4
Journal	Organometallics
Volume	28
Issue number	3
DOIs	https://doi.org/10.1021/om800904y
State	Published - 9 Feb 2009

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title = "Stepwise boron-to-zinc C6F5 group transfer in a Zn - calixarene system",

abstract = "Methylzinc calixarene complex (1) reacts with one equivalent of B(C 6F5)3 to give the ion-pair (calixarene)-Zn δ+ - Me - B(C6F5)3 δ- 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)Znδ+-HO-B(C6F5) 3δ- 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.",

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N2 - Methylzinc calixarene complex (1) reacts with one equivalent of B(C 6F5)3 to give the ion-pair (calixarene)-Zn δ+ - Me - B(C6F5)3 δ- 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)Znδ+-HO-B(C6F5) 3δ- 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.

AB - Methylzinc calixarene complex (1) reacts with one equivalent of B(C 6F5)3 to give the ion-pair (calixarene)-Zn δ+ - Me - B(C6F5)3 δ- 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)Znδ+-HO-B(C6F5) 3δ- 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.

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Stepwise boron-to-zinc C₆F₅ group transfer in a Zn - calixarene system

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