245. Organic antimonial compounds. Part III

Organoantimony compounds containing water-solubilizing groups

“…The trialfcylstibines, i9lth the exception of dlcyclo-hej^ethylantimony (30), are ell denser than water. Dyke and collaborators (58) prepared a nunber of trlalkylantiaony oorapounds and found that the density falls regiilarly as the molecu lar weight increases.…”

“…Trialkylantimony cooipounds may be prepared by the allcylation of antimony trihalides by means of dialkylzinc (134) or dialkylraercury compoiinds (33),or Grignard reagents (3,30,58,207,256), according to the followinij equations; would combine with the stibine to fons a stiboniuro compound.…”

“…The raost common type of pentavalent aliphatic antimony compounds ha.a the general fonaula RgSbXg, where "Xg*' may be (30,59,266).…”

“…The lower moleoular-welght trlalkylantlmony ccxnpoxinds also unite directly with halogens (30,59,164,199), cyajiogenbromlde 189, and oercurlc halldee (30) -57-…”

“…In this way the dlazoniuto compound Is stabilized by complex forma tion as soon as it le form^. 2t has been used extensively in this manner in later work (4,30,62,186,196,200,202,215,248), Although the presence of copper facilitates the evolution of nitrogen, it 1B not absolutely necessary, since the nitrogen is evolved very readily without "Hhe aid of any catalyst. -92-…”