Borane-bridged ruthenium complex bearing a PNP Ligand

• Verfasst von: Xu, Yijing [VerfasserIn]
• Verfasst von: Rettenmeier, Christoph Alexander [VerfasserIn]
• Verfasst von: Plundrich, Gudrun [VerfasserIn]
• Verfasst von: Wadepohl, Hubert [VerfasserIn]
• Verfasst von: Enders, Markus [VerfasserIn]
• Verfasst von: Gade, Lutz H. [VerfasserIn]
• Titel: Borane-bridged ruthenium complex bearing a PNP Ligand
• Titelzusatz: synthesis and structural characterization
• Verf.angabe: Yijing Xu, Christoph A. Rettenmeier, Gudrun T. Plundrich, Hubert Wadepohl, Markus Enders and Lutz H. Gade
• E-Jahr: 2015
• Jahr: October 2, 2015
• Umfang: 6 S.
• Fussnoten: Gesehen am 9.08.2020
• Titel Quelle: Enthalten in: Organometallics
• Ort Quelle: Washington, DC : ACS Publ., 1982
• Jahr Quelle: 2015
• Band/Heft Quelle: 34(2015), 20, Seite 5113-5118
• ISSN Quelle: 1520-6041
• DOI: doi:10.1021/acs.organomet.5b00699
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1724099396

Abstract

Reaction of the precursor complex [RuHCl(CO)(PPh3)3] with the PNP protioligand CbzdiphosH in toluene resulted in the formation of two stereoisomeric hydrido complexes, [(CbzdiphosH)RuHCl(CO)] (A). The addition of a strong base (KOtBu or LiEt3BH), on the other hand, led to the formation of the 1,2-dehydrochlorination product [(Cbzdiphos)RuH(CO)]. The reaction of the latter with BH3·THF at room temperature led to the 1,2-addition of the BH3 moiety to the Ru-N function, forming a RuNBH cycle in [(CbzdiphosHBH2)RuH(CO)] (B). The same borane-bridged compound was obtained when complex A was treated with NaBH4 in THF. The BH2 group forms a bridging unit between the carbazole-N atom and one of the ruthenium-bound hydrides.