64809-29-6Relevant articles and documents
Nitrogen-doped cobalt nanocatalysts for carbonylation of propylene oxide
Chen, Lin,He, Lin,Xia, Chungu,Yang, Bingxiao,Zeng, Bo,Zhu, Gangli
, (2020/07/16)
Nitrogen-doped cobalt nanoparticles loaded on porous supports were developed for ring-opening carbonylation of propylene oxide. The catalysts were prepared by simply pyrolysis of Co(OAc)2/phenanthroline and supports. As proved by XPS combined with XRD and TEM characterizations, a higher amount of available Co-N sites were responsible for promoting the carbonylative activity. The selectivity of carbonylated products reached 93 percent, which is comparable to previously reported cobalt carbonyl catalysts. The novel type of carbonylative catalyst also could be reused and revealed fine stability due to the continuous generation of active [Co(CO)4]? species during reaction.
Combinatorial Strategies to find New Catalysts for Asymmetric Hydrogenation Based on the Versatile Coordination Chemistry of METAMORPhos Ligands
Terrade, Frédéric G.,Kluwer, Alexander M.,Detz, Remko J.,Abiri, Zohar,Van Der Burg, Alida M.,Reek, Joost N. H.
, p. 3368 - 3375 (2015/10/28)
To extend the toolbox and find improved catalysts, anionic METAMORPhos ligands and neutral amino-acid-based ligands were used separately and in mixtures to form Rh complexes used in the asymmetric hydrogenation of eight industrially relevant substrates. S
Oxidative esterification of homologous 1,3-propanediols
Kotionova, Tatyana,Lee, Christopher,Miedziak, Peter J.,Dummer, Nicholas F.,Willock, David J.,Carley, Albert F.,Morgan, David J.,Knight, David W.,Taylor, Stuart H.,Hutchings, Graham J.
, p. 1114 - 1120 (2012/10/29)
The oxidative esterification of a homologous series of diols (1,3-propanediol,2-methyl-propanediol and 2,2-dimethyl-1,3-propanediol) with methanol has been investigated using titania-supported gold, palladium and gold-palladium catalysts using molecular oxygen. The gold-palladium catalysts showed the highest activity and 1,3-propanediol was the most reactive while the additional methyl groups decreased the reactivity. However, it is possible to achieve high selectivity to methyl 3-hydroxypropionate and 2-methyl-3- hydroxyisobutyrate by mono-oxidations. Graphical Abstract: [Figure not available: see fulltext.]
