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1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesized through alkane elimination reactions

Bradley, Mark; Birchall, Christopher; Lewis, William; Blake, Alexander J.; Moxey, Graeme J.; Kays, Deborah L.

Authors

Mark Bradley mark.bradley@nottingham.ac.uk

Christopher Birchall

William Lewis

Alexander J. Blake

Graeme J. Moxey graeme.moxey@live.com.au

Deborah L. Kays deborah.kays@nottingham.ac.uk



Abstract

The reactions between magnesium or zinc alkyls and 1,8-bis(triorganosilyl)diaminonaphthalenes afford the 1,8-bis(triorganosilyl)diamidonaphthalene complexes with elimination of alkanes. The reaction between 1,8-C10H6(NSiMePh2H)2 and one or two equivalents of MgnBu2 affords two complexes with differing coordination environments for the magnesium; the reaction between 1,8-C10H6(NSiMePh2H)2 and MgnBu2 in a 1:1 ratio affords 1,8-C10H6(NSiMePh2)2{Mg(THF)2} (1), which features a single magnesium centre bridging both ligand nitrogen donors, whilst treatment of 1,8-C10H6(NSiR3H)2 (R3 = MePh2, iPr3) with two equivalents of MgnBu2 affords the bimetallic complexes 1,8-C10H6(NSiR3)2{nBuMg(THF)}2 (R3 = MePh2 2, R3 = iPr3 3), which feature four-membered Mg2N2 rings. Similarly, 1,8-C10H6(NSiiPr3)2{MeMg(THF)}2 (4) and 1,8-C10H6(NSiMePh2)2{ZnMe}2 (5) are formed through reactions with the proligands and two equivalents of MMe2 (M = Mg, Zn). The reaction between 1,8-C10H6(NSiMePh2H)2 and two equivalents of MeMgX affords the bimetallic complexes 1,8-C10H6(NSiMePh2)2(XMgOEt2)2 (X = Br 6; X = I 7). Very small amounts of [1,8-C10H6(NSiMePh2)2{IMg(OEt2)}]2 (8), formed through the coupling of two diamidonaphthalene ligands at the 4-position with concomitant dearomatisation of one of the naphthyl arene rings, were also isolated from a solution of 7.

Journal Article Type Article
Journal Dalton Transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 46
Issue 12
Pages 4101-4110
APA6 Citation Birchall, C., Bradley, M. A., Bradley, M., Birchall, C., Blake, A. J., Lewis, W., …Kays, D. L. (in press). 1,8-Bis(silylamido)naphthalene complexes of magnesium and zinc synthesized through alkane elimination reactions. Dalton Transactions, 46(12), 4101-4110. https://doi.org/10.1039/c7dt00471k
DOI https://doi.org/10.1039/c7dt00471k
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2017/DT/C7DT00471K#!divAbstract
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information : This document is Similarity Check deposited; : Crystal Structure Data; : Alexander J. Blake (ORCID); : Alexander J. Blake (ResearcherID); : William Lewis (ORCID); : William Lewis (ResearcherID); : Deborah L. Kays (ORCID); : The Royal Society of Chemistry has an exclusive publication licence for this journal; : Single-blind; : Received 7 February 2017; Accepted 1 March 2017; Accepted Manuscript published 1 March 2017; Advance Article published 9 March 2017; Version of Record published 21 March 2017

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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