{Tris[(dimethylamino)dimethylsilyl]methyl}magnesium Iodide. A Grignard Reagent without a Carbon−Magnesium Bond?
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Reaction of (Me2NMe2Si)3CI with Mg gives the Grignard reagent (Me2NMe2Si)3CMgI, in which all three N atoms are coordinated to Mg and there is a planar carbanionic center, suggesting the absence of Mg bonding.