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Lookup NU author(s): Dr Keith Izod, Dr Corinne Wills, Professor Mike ProbertORCiD, Dr Ross Harrington
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
The reaction between iPr2PCl and one equivalent of MeMgBr, followed by one equivalent of BH3·SMe2 gives the phosphine-borane iPr2P(BH3)Me (4). Treatment of 4 with nBuLi, followed by Me3SiCl gives the sterically demanding phosphine-borane {iPr2P(BH3)}(Me3Si)CH2 (5) in good yield. Metalation of 5 with nBuLi yields {iPr2P(BH3)}(Me3Si)CHLi (6), which was crystallised as the TMEDA adduct [{iPr2P(BH3)}(Me3Si)CH]Li(TMEDA) (6a) and characterised by X-ray crystallography. The reaction between two equivalents of in situ-generated 6 and Cp2Sn in toluene gives the dialkylstannylene [{iPr2P(BH3)}(Me3Si)CH]2Sn (7), which was crystallised from methylcyclohexane/THF as the rac diastereomer. X-ray crystallography reveals that stabilisation of the Sn centre in 7 is afforded by two agostic-type B-H..Sn interactions, one from each BH3 group.
Author(s): Izod K, Wills C, Probert MR, Harrington RW
Publication type: Article
Publication status: Published
Journal: Main Group Metal Chemistry
Year: 2014
Volume: 37
Issue: 5-6
Pages: 113-117
Print publication date: 01/12/2014
Online publication date: 26/09/2014
Acceptance date: 20/08/2014
Date deposited: 31/10/2014
ISSN (print): 0792-1241
ISSN (electronic): 2191-0219
Publisher: De Gruyter
URL: http://dx.doi.org/10.1515/mgmc-2014-0028
DOI: 10.1515/mgmc-2014-0028
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