title: Clean osmium-catalyzed asymmetric dihydroxylation of olefins in ionic liquids and supercritical CO2 product recovery.
abstract: The combination of ionic liquids (ILs) as solvents in the asymmetric Sharpless dihydroxylation (AD) with the use of scCO(2) in the separation process allows a very simple, efficient, clean and robust system for the reuse of the AD catalytic system, which also does not need the use of organic solvents either for the reaction or for the separation of products and allows the isolation of the diol, in high yield and enantiomeric excess and basically without contamination with osmium.
authors.affiliation: REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal.
authors.forename: Luis C
authors.initials: LC
authors.lastname: Branco
authors.forename: Ana
authors.initials: A
authors.lastname: Serbanovic
authors.forename: Manuel Nunes
authors.initials: MN
authors.lastname: da Ponte
authors.forename: Carlos A M
authors.initials: CA
authors.lastname: Afonso