Performance of chiral tetracarbonylmolybdenum pyrindanyl amine complexes in catalytic olefin epoxidation
authors Neves, P; Nogueira, LS; Valente, AA; Pillinger, M; Goncalves, IS; Sampaio-Dias, IE; Sousa, CAD; Rizzo-Aguiar, F; Rodriguez-Borges, JE
nationality International
journal JOURNAL OF ORGANOMETALLIC CHEMISTRY
author keywords Molybdenum; Tetracarbonyl complexes; Olefin epoxidation; Chiral ligands; 1-pyrindane derivatives; Oxidative decarbonylation
keywords ALTERNATING COPOLYMERIZATION; HYDROGEN-PEROXIDE; HYBRID MATERIALS; MOLYBDENUM; LIMONENE; OCTAMOLYBDATE; CARBONYL; PRECURSORS; ALCOHOL; ROUTE
abstract Tetracarbonylmolybdenum(0) complexes of the type cis-[Mo(CO)(4)(L)] containing chiral 7-(1-pyrindanyl) amine ligands were prepared and found to be effective precatalysts for the epoxidation of achiral (cis-cyclooctene) and prochiral (DL-limonene and trans-beta-methylstyrene) olefins at 55 degrees C. Epoxides were the only products formed from cis-cyclooctene (100% yield) and trans-b-methylstyrene (100% selectivity at 82-85% conversion), and the main products formed from DL-limonene (80-82% 1,2-epoxide selectivity at 85% conversion). Characterization of recovered catalysts revealed that the precatalysts were transformed in situ to stable polyoxomolybdate salts containing the beta-octamolybdate anion [beta-Mo8O26](4-), which was responsible for the catalytic reaction. (c) 2018 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0022-328X
year published 2018
volume 858
beginning page 29
ending page 36
digital object identifier (doi) 10.1016/j.jorganchem.2018.01.003
web of science category Chemistry, Inorganic & Nuclear; Chemistry, Organic
subject category Chemistry
unique article identifier WOS:000425325300005
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