Lithiation of the diaminopyridine protio-ligand MeC(2-C5H4N){CH2N(H) Mes}(2) (Mes=2,4,6-C6H2Me3)

Ward, Benjamin David ORCID: https://orcid.org/0000-0003-1406-5940, Gade, L. H. and Mountford, P. 2006. Lithiation of the diaminopyridine protio-ligand MeC(2-C5H4N){CH2N(H) Mes}(2) (Mes=2,4,6-C6H2Me3). Acta Crystallographica Section E 62 (3) , M472-M474. 10.1107/S1600536806004041

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Abstract

Reaction of the diamidopyridine protio-ligand MeC(2-C5H4N){CH2N(H)Mes}2 (Mes = 2,4,6-C6H2Me3) with butyllithium in diethyl ether affords the compound (diethyl ether)(4-2-{6-[1,3-dimethyl-3-(2-pyridyl)-1,4-bis(2,4,6-trimethylanilinio)butyl]-2-pyridyl}-2-methyl-1,3-bis(2,4,6-trimethylanilinio)propane)tetralithium(I), [Li4(C55H64N6)(C4H10O)] or Li4[MeC(2-C5H4N){CH2N(Mes)}CHN(2,4,6-C6H2-Me2C(Me)(2,2'-C5H3N){C(Me)}(CH2NMes)2](OEt2), which shows the methylation of the pyridyl ortho-position with a methyl group of one of the mesityl groups. The complex contains four Li atoms, each of which is chemically distinct. The tetraanionic ligand contains two protio-ligand units which are fused together into a single entity. The structure contains two disordered molecules of diethyl ether, one of which is coordinated to one of the Li atoms.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	International Union of Crystallography
ISSN:	1600-5368
Last Modified:	18 Oct 2022 12:24
URI:	https://orca.cardiff.ac.uk/id/eprint/9721

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