Carbon-hydrogen bonds chloride dimer

Treatment of 2,2,4,4-tetramethyl-3-thietanone with diiron nonacarbonyl gives the binuclear iron complex 381. 2,2-Dimethyl-3-thietanone undergoes oxidative dimerization to 382 on treatment with potassium ferricyanide. Methylene-3-thietanones such as 359 add chlorine from thionyl chloride to the carbon-carbon double bond. 2,2,4,4-tetramethyl-3-thietanone is converted to the 3-thione in 14% yield by treatment with hydrogen sulfide-hydrogen chloride. Electrochemical reduction of the thione produces radical anions. 

The reaction of [Pt(methoxydicyclopentadienyl)(Ph)(PPh3)] with hydrogen chloride or mercuiy(n) chloride, in which the platinum-carbon cr-bond to the dicyclopentadienyl ligand is broken, involves oxidative addition. The o-vinylphenylphosphine complex (15) undergoes oxidative addition with bromine to yield a platinum(iv) dimer. ... 

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