Isolation and structural characterisation of [{(Me3Si)2NMg[µ-OC(H)Ph2] ·(OCPh2)}2], an intermediate in the -hydride transfer reaction between an alkyl(amido)magnesium and benzophenone

K.W. Henderson, J.F. Allan, A.R. Kennedy

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Abstract

The in situ reaction of Bu2Mg with 2 mol. equiv. of (Me3Si)2NH followed by addition of Ph2CO yields the heteroleptic amide/alkoxide complex [{(Me3Si)2NMg[µ-OC(H)Ph2] ·(OCPh2)}2] 1, whereas reaction of purified [{(Me3Si)2N}2Mg] 2 with Ph2CO results in formation of the solvate [{(Me3Si)2N}2Mg·(O CPh2)2] 3, the difference being due to incomplete amination of the bis(alkyl)magnesium compound resulting in -hydride transfer to the ketone, which is the first example of this type of transformation using an alkyl(amido)magnesium reagent.
Original languageEnglish
Pages (from-to)1149-1150
Number of pages1
JournalJournal of the Chemical Society, Chemical Communications
Volume1997
Issue number12
DOIs
Publication statusPublished - 1997

Keywords

  • heteroleptic amide/alkoxide complex
  • solvate
  • ketone
  • magnesium reagent

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