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Issue 0, 1969
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Reactions of organoaluminium compounds with cyanides. Part III. Reactions of trimethylaluminium, triethylaluminium, dimethylaluminium hydride, and diethylaluminium hydride with dimethylcyanamide

Abstract

Dimethylcyanamide reacts with trimethyl- and triethyl-aluminium to form adducts, Me2NC⋮N,AlR3, the i.r. spectra of which show that co-ordination occurs through the cyanide nitrogen. At 115° in a sealed tube, Me2NC⋮N,AlMe3 suffers extensive decomposition to methane, (Me2AlNMe2)2, and polymeric materials, whereas Me2NC⋮N,AlEt3 loses ethylene and rearranges to the dimeric formamidino-derivative (Me2NCH:NAlEt2)2. This last, like its methyl analogue (Me2NCH:NAlMe2)2, is better prepared from Me2NC⋮N +⅓(R2AlH)3, and is believed to have a structure based on an (AlN)2 four-membered ring. Features of the i.r. and 1H n.m.r. spectra of the dimethylcyanamide adducts and formamidino-derivatives are discussed.

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Article type: Paper
DOI: 10.1039/J19690001121
Citation: J. Chem. Soc. A, 1969,0, 1121-1124
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    Reactions of organoaluminium compounds with cyanides. Part III. Reactions of trimethylaluminium, triethylaluminium, dimethylaluminium hydride, and diethylaluminium hydride with dimethylcyanamide

    K. Wade and B. K. Wyatt, J. Chem. Soc. A, 1969, 0, 1121
    DOI: 10.1039/J19690001121

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