Synthesis and structures of a 3-sila-beta-diketiminatomagnesium bromide, ketenimide and triflate |
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| Authors: | Farwell James D Hitchcock Peter B Lappert Michael F Protchenko Andrey V |
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| Institution: | The Chemistry Department, University of Sussex, Brighton, UK BN1 9QJ. |
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| 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). |
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