Diphenyl mercury dichloride

Diphenyl Tellurium Dichloride from Diphenyl Mercury and Tellurium Tetrachloride3 4.56 g (17 mmol) of tellurium tetrachloride and 6.0 g (17 mmol) of diphenyl mercury are dissolved in 20 ml of dry dioxane, the mixture is heated under reflux for 1 h, and allowed to cool to 20°. Precipitated mercury(ll) chloride-dioxane adduct is filtered off, the filtrate is evaporated to one third of its original volume under vacuum, and 20 ml of petroleum ether are added to the stirred concentrate. The precipitated product is filtered, washed with diethyl ether, and dried yield 5.9 g (98%) m.p. 163° (from benzene). 

Evaporation of a solution of equimolar amounts of diphenyl tellurium dibromide and mercury(II) chloride in ethanol and extraction of the residue with hot chloroform gave diphenyl tellurium dichloride (m.p. 160°) in high yield. A similar reaction in chloroform converted dimethyl tellurium diiodide to the dichloride (m.p. 90°) in 95% yield3. 

Phenylacetyl chloride and hydrocin-namoyl chloride are reduced at mercury to form both acyl radicals and acyl anions as intermediates [76]. From electrolyses of phenylacetyl chloride, the products include 1,4-diphenyl-2-butene-2,3-diol diphenylac-etate, phenylacetaldehyde, toluene, 1,3-diphenylacetone, and l,4-diphenyl-2,3-butanediol, and analogous species arise from the reduction of hydrocinnamoyl chloride. Reduction of phthaloyl dichloride is a more complicated system [77] the electrolysis products are phthalide, biph-thalyl, and 3-chlorophthalide, but the latter compound undergoes further reduction to give phthalide, biphthalyl, and dihydrobi-phthalide. 

Triphenylstibine dichloride, (C6H5)3SbCl2, may be prepared in several ways (1) By the prolonged heating of antimony trichloride with mercury diphenyl in a sealed tube at 130° C. (2) By treating... 

---