Use of metal-accumulating plants for the preparation of catalysts that can be used in chemical reactions
AssigneesCentre National De La Recherche Scientifique, Universite Montpellier 2 Sciences Et Techniques
InventorsClaude Grison, Jose Escarre
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Abstract
A method of implementing organic synthesis reactions uses a composition containing a metal catalyst originating from a calcined plant. The plants can be from the Brassicaceae, Sapotaceae and Convolvulaceae family, and the metal catalyst contains metal in the M(II) form such as zinc, nickel, manganese, lead, cadmium, calcium, magnesium or copper. Examples of the organic synthesis reactions include halogenations, electrophilic reactions, cycloadditions, transesterification reactions and coupling reactions, among others.
Claims19
A method for the implementation of an organic synthesis reaction, comprising:
- providing a composition comprising at least one metal catalyst containing a metal in the M(II) form, said metal originating from a calcined plant or calcined plant part, said composition having been acid treated,
- wherein said at least one metal in the M(II) form is selected from the group consisting of zinc (Zn), nickel (Ni), and manganese (Mn), said metal in the M(II) form having been accumulated by the plant during its growth in a soil containing said metal and at least one cationic species selected from the group consisting of Mg2+ Ca2+, Fe3+, Na+ and K+ which have not been accumulated by said plant but are physiologically present in said plant and originate from the latter;
- and
- bringing the composition into contact with at least one chemical compound capable of reacting with said composition.
Dependencies are inferred from the claim text.