Dimethylstibine cyanide, an analogue of cacodyl cyanide

Abstract

The combination of cyanogen bromide and organic arsines has been studied by Steinkopf and collaborators, who found that triethylarsine furnished an unstable cyanobromide hydrolysed by air to triethylarsine hydroxybromide, although the unhydrolysed product, triethylarsine cyanobromide, was eventually isolated in a special apparatus. Aliphatic and aliphatic-aromatic arsines combine similarly with cyanogen bromide to form arsine cyanobromides, and these additive products when heated lose alkyl bromide with the formation of the corresponding cacodyl cyanides.