The syntheses and structures of some main group complexes of the sterically hindered N,N '-bis(2,6-diisopropylphenyl)-4-toluamidinate ligand

Citation:

Boeré RT, Cole ML, Junk PC. The syntheses and structures of some main group complexes of the sterically hindered N,N '-bis(2,6-diisopropylphenyl)-4-toluamidinate ligand. New Journal of Chemistry [Internet]. 2005;29:128-134.

Abstract:

The stoichiometric reaction of the bulky benzamidine N, N'-bis(2,6-diisopropylphenyl)-4-toluamidine (HDippAm) with the metal alkyls (BuLi)-Li-n (1 : 1 in THF), Bu2Mg (2 : 1 in THF) and Me3Al (1 : 1 in Et2O) is presented. This provides the mononuclear dihapto benzamidinate compounds [Li(DippAm)(THF)(2)] (1), [Mg(DippAm)(2)] (2) and [Al(DippAm)Me-2] (3), respectively. Compound 3 was also obtained by salt elimination using dimethylaluminium chloride and 1. All three compounds exhibit sterically strained geometries that are maintained in solution at increased temperatures. Compound 3 displays exceptional thermal and aerobic stability, while 2 constitutes a rare example of non-porphyrin supported square planar magnesium.

Notes:

Times Cited: 28Boere, RT Cole, ML Junk, PC

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René T. Boeré

Professor of Chemistry

The syntheses and structures of some main group complexes of the sterically hindered N,N '-bis(2,6-diisopropylphenyl)-4-toluamidinate ligand

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