Reactions of (-)-sparteine with alkali metal HMDS complexes: conventional meets the unconventional.
'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 x Na(mu-HMDS)Na x (-)-sparteine](+)[Na(4)(mu-HMDS)(4)(OH)](-)--the complex anion of which is the first inverse crown ether anion.
WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK G1 1XL.
Natalie M
NM
Clark
Pablo
P
García-Alvarez
Alan R
AR
Kennedy
Charles T
CT
O'Hara
Gemma M
GM
Robertson
D018360:Crystallography, X-Ray; D018020:Lithium Compounds / Q000737:chemistry*; D008672:Metals, Alkali / Q000737:chemistry*; D008968:Molecular Conformation; D017646:Organosilicon Compounds / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry*; D013034:Sparteine / Q000737:chemistry*
D018020:Lithium Compounds; D008672:Metals, Alkali; D017646:Organosilicon Compounds; D012821:Silanes; D013034:Sparteine; C024548:hexamethylsilazane; C442341:lithium hexamethyldisilazide