Issue 38, 2020
From the journal:

Dalton Transactions

An intermolecular FLP System derived from an NHC-coordinated trisilacyclopropylidene†

Benedikt J. Guddorf,a   Alexander Hepp, ORCID logo a   Constantin Daniliuc, ORCID logo b   Douglas W. Stephan ORCID logo *c  and  Felicitas Lips ORCID logo *a  

* Corresponding authors

a Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, D-48149 Münster, Germany

b Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 40, D-48149 Münster, Germany

c University of Toronto, Department of Chemistry, 80 St. George St., Toronto, Ontario, Canada
E-mail: dstephan@chem.utoronto.ca

Abstract

The NHC-coordinated trisilacyclopropylidene (A) is shown to behave as the basic component of an FLP used in combination with the Lewis acid B(C6F4H)3 (i.e. B(2,3,5,6-C6F4H)3). This FLP cleaves dihydrogen highly selectively at room temperature giving rise to the ionic compound [(NHC)SiH(Mes2SiSiMes2)][HB(C6F4H)3] 1 in 90% isolated yield. Further reaction of the FLP with Ph2NH and acetone yielded compounds [(NHC)SiH(Mes2SiSiMes2)][Ph2NB(C6F4H)3] 2 and [(NHC)SiH(Mes2SiSiMes2)][MeC(CH2)OB(C6F4H)3] 3 in 75% and 80% yield, respectively. Reaction of the FLP with N2O results in the oxidation of the silylene center affording [((NHC)SiOB(C6F4H)3)(Mes2SiSiMes2)] 4 in 53% yield. These products are spectroscopically characterized and an X-ray structure of 4 is reported.

Graphical abstract: An intermolecular FLP System derived from an NHC-coordinated trisilacyclopropylidene

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Article information

DOI
https://doi.org/10.1039/D0DT02797A
Article type
Paper
Submitted
10 Aug 2020
Accepted
14 Sep 2020
First published
15 Sep 2020

Dalton Trans., 2020,49, 13386-13392

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An intermolecular FLP System derived from an NHC-coordinated trisilacyclopropylidene

B. J. Guddorf, A. Hepp, C. Daniliuc, D. W. Stephan and F. Lips, Dalton Trans., 2020, 49, 13386 DOI: 10.1039/D0DT02797A

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