Selective dehydrogenation of ammonia borane to polycondensated BN rings catalysed by ruthenium olefin complexes

Daniel Himmelbauer; Fabian Müller; Clara Schweinzer; Fernando Casas; Bruno Pribanic; Grégoire Le Corre; Debora Thöny; Monica Trincado; Hansjörg Grützmacher

doi:10.1039/d3cc05709g

Selective dehydrogenation of ammonia borane to polycondensated BN rings catalysed by ruthenium olefin complexes

Chem Commun (Camb). 2024 Jan 18;60(7):885-888. doi: 10.1039/d3cc05709g.

Authors

Daniel Himmelbauer^{1

2}, Fabian Müller¹, Clara Schweinzer¹, Fernando Casas¹, Bruno Pribanic¹, Grégoire Le Corre¹, Debora Thöny¹, Monica Trincado¹, Hansjörg Grützmacher¹

Affiliations

¹ Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1, Zurich CH-8049, Switzerland. trincado@inorg,chem.ethz.ch.
² Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, Vienna A-1060, Austria.

Abstract

Dehydrogenation of ammonia borane to well-defined products is an important but challenging reaction. A dinuclear ruthenium complex with a Ru-Ru bond bearing a diazadiene (dad) unit and olefins as non-innocent ligands catalyzes the highly selective formation of conjugated polycondensed borazine oligomers (B_xN_xH_y), predominantly B₂₁N₂₁H₁₈, the BN analogue of superbenzene.