166330-15-0Relevant academic research and scientific papers
Exchanging conformations of a hydroformylation catalyst structurally characterized using two-dimensional vibrational spectroscopy
Panman, Matthijs R.,Vos, Jannie,Bocokic, Vladica,Bellini, Rosalba,De Bruin, Bas,Reek, Joost H. N.,Woutersen, Sander
, p. 14294 - 14298 (2013)
Catalytic transition-metal complexes often occur in several conformations that exchange rapidly (2H using two-dimensional vibrational spectroscopy, a method that can be applied to any catalyst provided that the exchange between its conformers occurs on a time scale of a few picoseconds or slower. We find that, in one of the conformations, the OC-Rh-CO angle deviates significantly from the canonical value in a trigonal-bipyramidal structure. On the basis of complementary density functional calculations, we ascribe this effect to attractive van der Waals interaction between the CO and the xantphos ligand.
Tandem hydroformylation/hydrogenation of alkenes to normal alcohols using Rh/Ru dual catalyst or Ru single component catalyst
Takahashi, Kohei,Yamashita, Makoto,Nozaki, Kyoko
, p. 18746 - 18757 (2013/01/15)
The catalyst system for tandem hydroformylation/hydrogenation of terminal alkenes to the corresponding homologated normal alcohol was developed. The reaction mechanism for the Rh/Ru dual catalyst was investigated by real-time IR monitoring experiments and 31P NMR spectroscopy, which proved the mutual orthogonality of Rh-catalyzed hydroformylation and Ru-catalyzed hydrogenation. Detailed investigation about Ru-catalyzed hydrogenation of undecanal under H2/CO pressure clarified different kinetics from the hydrogenation under H2 and gave a clue to design more active hydrogenation catalysts under H2/CO atmosphere. The solely Ru-catalyzed normal selective hydroformylation/hydrogenation is also reported.
High-yielding tandem hydroformylation/hydrogenation of a terminal olefin to produce a linear alcohol using a Rh/Ru dual catalyst system
Takahashi, Kohei,Yamashita, Makoto,Ichihara, Takeo,Nakano, Koji,Nozaki, Kyoko
, p. 4488 - 4490 (2010/08/19)
(Chemical equation presented) A dual catalyst system has been developed for tandem hydroformylation/hydrogenation to produce n-undecanol from 1-decene in one pot. A combination of xantphos/[Rh(acac)(CO)2] and Shvo's catalyst (1) afforded the best results (see scheme; acac = acetylacetonate, DMA = N,N-dimethylacetamide). Polar solvents effectively suppressed the formation of undecyl formate.
A silica-supported, switchable, and recyclable hydroformylation - Hydrogenation catalyst
Sandee,Reek,Kamer,Van Leeuwen
, p. 8468 - 8476 (2007/10/03)
A homogeneous hydroformylation catalyst, designed to produce selectively linear aldehydes, was covalently tethered to a polysilicate support. The immobilized transition-metal complex [Rh(A)CO]+ (1+), in which A is N-(3-trimethoxysila
