title: Synthesis and structures of a 3-sila-beta-diketiminatomagnesium bromide, ketenimide and triflate.
abstract: The crystalline compounds [Mg(Br)(L)(thf)].0.5Et2O [L = {N(R)C(C6H3Me2-2,6)}2SiR, R = SiMe3] (1), [Mg(L){N=C=C(C(Me)=CH)2CH2}(D)2] [D = NCC6H3Me2-2,6 (2), thf (3)] and [{Mg(L)}2{mu-OSO(CF3)O-[mu}2] (4) were prepared from (a) Si(Br)(R){C(C6H3Me2-2,6)=NR}2 and Mg for (1), (b) [Mg(SiR3)2(thf)2] and 2,6-Me2C6H3CN (5 mol for (2), 3 mol for (3)), and (c) (2) + Me3SiOS(O)2CF3 for (4); a coproduct from (c) is believed to have been the trimethylsilyl ketenimide Me3SiN=C=C{C(Me)=CH}2CH2 (5).
authors.affiliation: The Chemistry Department, University of Sussex, Brighton, UK BN1 9QJ.
authors.forename: James D
authors.initials: JD
authors.lastname: Farwell
authors.forename: Peter B
authors.initials: PB
authors.lastname: Hitchcock
authors.forename: Michael F
authors.initials: MF
authors.lastname: Lappert
authors.forename: Andrey V
authors.initials: AV
authors.lastname: Protchenko