Angewandte Chemie - International Edition p. 15603 - 15609 (2020)
Update date:2022-07-29
Topics:
Comas-Vives, Aleix
Eiler, Frederik
Grützmacher, Hansj?rg
Pribanic, Bruno
Trincado, Monica
Vogt, Matthias
The dehydrogenation of organosilanes (RxSiH4?x) under the formation of Si?Si bonds is an intensively investigated process leading to oligo- or polysilanes. The reverse reaction is little studied. To date, the hydrogenolysis of Si?Si bonds requires very harsh conditions and is very unselective, leading to multiple side products. Herein, we describe a new catalytic hydrogenation of oligo- and polysilanes that is highly selective and proceeds under mild conditions. New low-valent nickel hydride complexes are used as catalysts and secondary silanes, RR′SiH2, are obtained as products in high purity.
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