Heterocycles as ligands. XII. Synthesis and structure of (C28H40N)MgC2H5.2C4H8O. Stabilization of a monomeric organomagnesium amide by steric crowding.
Ethyl(1,3,6,8-tetra-tert-butylcarbazolyl)magnesium (I) is obtained as its monomeric THF adduct by the reaction of 1,3,6,8-tetra-tert-butylcarbazole with diethylmagnesium in THF. The x-ray structure of I reveals a strongly distorted terminal coordination (carbz-N-Mg 117.4 Deg) of the carbazolyl ligand.
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