Ytterbium thiolate

Reductive coupling of carbonyl compounds. A divalent ytterbium thiolate,... 

Metals. Lanthanide metals are also considered as valuable precursors. For example, alkoxides derived from cheap and low-boiling-point alcohols have been alternatively synthesized from metals in the presence of HgQ2 as catalyst [133]. Representative and specific methods of preparation include transmetalla-tion reactions (Eq. 7-9) [134], using ammonia solutions of ytterbium and europium as synthetic reagents (Eq. 10) [135] and the generation of thiolate complexes from disulfides (Eq. 11) [136],... 

Reduction of sulfur compounds. Formation of the metal(III) thiolates from ytterbium and disulfides is catalyzed by benzophenone. The thiolates are useful in conjugate addition to enones. 

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