Search results for "Noyori asymmetric hydrogenation"
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Unsymmetrical Iron P-NH-P' Catalysts for the Asymmetric Pressure Hydrogenation of Aryl Ketones.
2017
R.H.M. thanks NSERC Canada for a Discovery grant and the Canada Council for the Arts for a Killam Fellowship. This work was also made possible by the SCICOMP NMR facilities provided by the Canada Foundation for Innovation, project number 19119, and the Ontario Ministry of Research, Innovation and Science. The Deutscher Akademischer Austauschdienst (DAAD) is thanked for support for A.P. Calculations were performed using the facilities of SHARCNET and Scinet of Compute/Calcul Canada
Selective homogeneous hydrogenation of cycloocta-1,5, and cycloocta-1,3-diene to cyclooctene in the presence of (η4-cycloocta-1,5-diene)(η6-cycloocta…
1983
Cyclooctadiene isomers (1,3- and 1,5-COD) are selectively, homogenously hydrogenated to cyclooctene (C8H14) in tetrahydrofuran (THF) solution, under mild conditions of temperature (20 °C) and hydrogen pressure (1 atm), in the presence of catalytic amounts of (cycloocta-1,5-diene)(cycloocta-1,3,5,-triene)ruthenium(0), [Ru(η4-COD)(η6-C8H10)] (1). The rate of hydrogenation is higher when 1,3-COD is the substrate. Evidence for the isomerization 1,5-COD → 1,3-COD is reported. Similar studies carried out in several alcoholic solutions, although showing a decreased selectivity in the hydrogenation, confirm the isomerization 1,5-COD → 1,3-COD, and allow a discrimination between the isomerization an…