Reactions of (-)-sparteine with alkali metal HMDS complexes : conventional meets the unconventional

Clark, N.M. and Garcia-Alvarez, P. and Kennedy, A.R. and O'Hara, C.T. and Robertson, G.M. (2009) Reactions of (-)-sparteine with alkali metal HMDS complexes : conventional meets the unconventional. Chemical Communications (London), 2009 (39). pp. 5835-5837. ISSN 0009-241X (https://doi.org/10.1039/b908722b)

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Abstract

Conventional (-)-sparteine adducts of lithium and sodium 1,1,1,3,3,3-hexamethyldisilazide (HMDS) were prepared and characterised, along with an unexpected and unconventional hydroxyl-incorporated sodium sodiate, [(-)-sparteine·Na(-HMDS)Na·(-)-sparteine]+[Na4(-HMDS)4(OH)]--the complex anion of which is the first inverse crown ether anion.