112320-11-3Relevant articles and documents
Exchange processes in complexes with two ruthenium (η2-silane) linkages: Role of the secondary interactions between silicon and hydrogen atoms
Atheaux, Isabelle,Delpech, Fabien,Donnadieu, Bruno,Sabo-Etienne, Sylviane,Chaudret, Bruno,Hussein, Khansaa,Barthelat, Jean-Claude,Braun, Thomas,Duckett, Simon B.,Perutz, Robin N.
, p. 5347 - 5357 (2002)
The exchange processes in complexes with two ruthenium linkages were discussed. Conversion of the most stable isomer with C2v symmetry to the asymmetric Ru(η2-SiH)2 isomer was found to be the prelude to the formation of Ru
Convenient preparation of mononuclear and dinuclear ruthenium hydride complexes for catalytic application
Busch, Stefan,Leitner, Walter
, p. 2305 - 2306 (1999)
A mixture of commercially available [Ru(cod)(η3-C4H7)2] and PCy3 reacts with H2 to give [RuH2(H2)2(PCy3)2] in high yields, whereas [Ru
Catalyzed hydrogenation of condensed three-ring arenes and their N-heteroaromatic analogues by a bis(dihydrogen) ruthenium complex
Borowski, Andrzej F.,Vendier, Laure,Sabo-Etienne, Sylviane,Rozycka-Sokolowska, Ewa,Gaudyn, Alicja V.
, p. 14117 - 14125 (2013/01/15)
A series of anthracene and acridine derivatives were hydrogenated under mild reaction conditions (80 °C, 3 bar of H2) using the bis(dihydrogen) complex [RuH2(η2-H2) 2{P(C6H11)3}2] (1) as a catalyst precursor. The influence of a methyl substituent on the substrate was studied. In all our systems, hydrogenation was only observed at the external rings leading to the corresponding 4H- or 8H-derivatives of anthracene and acridine. Three complexes resulting from the η4(C,C)-coordination of the substrate to the unsaturated fragment [RuH2{P(C 6H11)3}2] were characterized. In the case of 9-methyl acridine, the corresponding complex [RuH2(η 4-C14H11N){P(C6H11) 3}2] (4) turned out to be an active catalyst precursor leading to 1,2,3,4,5,6,7,8-octahydro-9-methylacridine as the sole product after 24 h. Regeneration of 1 from 4 supports the role of complex 4 in the catalytic cycle. Three hydrogenated products, 1,2,3,4-tetrahydroanthracene (4H-Anth), 1,2,3,4-tetrahydro-9-methylanthracene (4H-9-Me-Anth) and 1,2,3,4- tetrahydroacridine (4H-Acr), were characterized by X-ray diffraction. The Royal Society of Chemistry 2012.
RuH2(H2)2(PCy3)2: A room temperature catalyst for the Murai reaction
Guari, Yannick,Castellanos, Aida,Sabo-Etienne, Sylviane,Chaudret, Bruno
, p. 77 - 82 (2008/10/09)
RuH2(H2)2(PCy3)2 (1) and RuH(o-C6H4C(O)Me)(H2)(PCy 3)2 (2) or, 1 and RuH(o-C6H4C(O)Ph) (H2)(PCy3)2 (3) were shown to be efficient catalysts for the ethylene coupling reaction with acetophenone (7a) or benzophenone (9), respectively. This efficiency under such mild conditions is attributed to the facile generation of two vacancies on the ruthenium centre. Such an hypothesis is confirmed by the fact that the corresponding carbonyl complexes RuH(o-C6H4C(O)Me)(CO)(PCy3) 2 (4) and RuH(o-C6H4C(O)Ph)(CO)(PCy 3)2 (5) were found completely inactive for the Murai coupling under the same conditions. Furthermore, we postulate that the bis(chelate) complex Ru(C6H4C(O)CH3) 2(PCy3)2 (6), which is the resting state of the catalyst, is responsible for the deactivation of our catalytic system.
