Abstract
The convenient preparation of some methyl, ethyl, vinyl and phenyl halo-arsines and -stibines by the action of the corresponding hydrocarbon halides on elementary arsenic and bismuth is described. Suitable conditions vary with the halide employed: methyl bromide and chloride react satisfactorily at 350–375° in the presence of copper as catalyst, but vinyl bromide and chloride require a temperature at least 100° above this. Methyl iodide reacts at 280°, but the yields are poor. Silver is a superior catalyst for the reaction of bromobenzene with arsenic. Bismuth gave no isolable product with methyl chloride, but methyl bromide gave a low yield of methyldibromobismuthine.
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