Issue 6, 2000
From the journal:

Journal of the Chemical Society, Dalton Transactions

A novel α,ω silyl dianionic salt. The synthesis and characterization of remotely connected benzannulated silole monoanions

Seok-Bong Choia  and  Philip Boudjouk*a  

* Corresponding authors

a Center for Main Group Chemistry, Department of Chemistry, North Dakota State University, Fargo, North Dakota, USA

Abstract

The novel dilithium salt of 1,2-bis((BPSI)2)ethane (BPSI = 3-butyl-2-phenyl-1-silaindenyl) 4 was prepared from the reaction of 2 with 1,2-bis(chloro-BPSI)ethane 3 and characterized by NMR spectroscopy and by X-ray crystallography. It is demonstrated that dianions of silicon not only can perform stepwise reactions but also that, when a quenching reagent possesses two remote electrophilic centers, they can be attacked separately and maintain single charges on the silicon centers. The two lithium ions in 4 are η1 -coordinated to two remote silyl anions. NMR and X-ray data are consistent with a low degree of π-electron delocalization in the C4Si ring.

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Article information

DOI
https://doi.org/10.1039/A906915A
Article type
Paper
Submitted
25 Aug 1999
Accepted
31 Jan 2000
First published
28 Feb 2000

J. Chem. Soc., Dalton Trans., 2000, 841-844

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A novel α,ω silyl dianionic salt. The synthesis and characterization of remotely connected benzannulated silole monoanions

S. Choi and P. Boudjouk, J. Chem. Soc., Dalton Trans., 2000, 841 DOI: 10.1039/A906915A

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