Issue 96, 2018

Taming a silyldiium cation and its reactivity towards sodium phosphaethynolate

Abstract

A dicationic bis(NHC)-stabilised silyldiium complex, [bis(NHC)-SiPh2]2+ (72+) (bis(NHC) = [CH2(NC3H2NDipp)2], Dipp = 2,6-iPr2C6H3), was synthesised for the first time. It reacts with sodium phosphaethynolate (NaOCP) as a source of monoanionic phosphorus to give the P-insertion product [bis(NHC)-PSiPh2]+ (8+). The latter comprises a seven-membered heterocycle containing a Si–P moiety which can easily be desilylated when exposed to dichlorophosphanes as exemplified by the synthesis of the diphosphanide cations [bis(NHC)-PPCy]+ (9+) and [bis(NHC)-PPPh]+ (10+).

Graphical abstract: Taming a silyldiium cation and its reactivity towards sodium phosphaethynolate

Supplementary files

Article information

Article type
Communication
Submitted
21 Sep 2018
Accepted
09 Nov 2018
First published
09 Nov 2018
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2018,54, 13523-13526

Taming a silyldiium cation and its reactivity towards sodium phosphaethynolate

A. Hermannsdorfer, D. W. Stephan and M. Driess, Chem. Commun., 2018, 54, 13523 DOI: 10.1039/C8CC07632D

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