Insertion carbon disulfide

Carbon disulfide inserted into the Tc-O bonds of dimethyl tellurium dialkoxides with formation of dimethyl tellurium dixanthates6. 

Carbon disulfide inserts in the same way as CO 2 into the metal-oxygen bond of metal alkoxides and oxides. Examples of the dithiocarbonates formed are given in Table 2 . ... 

Copper complexes of bis(2,2 -dipyridyl)dithiocarbamate have been prepared upon insertion of carbon disulfide into the copper-nitrogen bonds of the corresponding 2,2 -dipyridylamine (dpa) complexes (195, 196). Kumar and Tuck (195) initially noted this behavior for [Cu(dpa)] , [Cu(dpa)2], and [Cu(dpa)(dppe)l [dppe = l,2-bis(diphenylphosphino)ethane], but characterization was made only on the basis of the presence of characteristic v(C—S) and v(C—N) bands in their IR spectra. Later, this was confirmed by the X-ray crystal structure of [Cu(S2Cdpa)2], formed upon slow evaporation of a carbon disulfide solution of [Cu(dpa)2] (Eq. 21) (196). The transformation is actually quite complex as in the dpa complex, metal coordination is through the nitrogen atoms of the pyridyl rings (197), and thus a rearrangement to the amide form must occur prior to carbon disulfide insertion. 

Without additional reagents Carbon disulfide insertion... 

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