Coreactive supporting materials for heterogenization of catalysts, cocatalysts and ligands
AssigneeMerck & Co., Inc.
InventorsEike Poetsch, Herwig Buchholz
Life of this patent
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Abstract
The invention relates to a process for preparing a support material having an increased number of reactive groups and to a process for preparing coreactive surfaces that may have catalytic or cocatalytic properties.
Claims13
A process for preparing a support material having an increased number of reactive groups, comprising
- a) reacting an oxygen-containing inorganic material in an inert aprotic polar or inert aprotic nonpolar solvent with a strongly basic reagent containing one or more alkali metal or alkaline earth metal (M) atoms, the resultant OM groups formed on the surface of the inorganic material optionally being set free by acidifying with an organic or inorganic acid to form OH groups, and
- b) reacting the OH and/or OM groups formed on the surface of the inorganic material with coreactive groups of a ligand, catalyst or cocatalyst, wherein said ligand, catalyst and cocatalyst comprises a functional organic group, and/or
- c) modifying the OH and/or OM groups formed on the surface of the inorganic material by chemisorptively binding coreactive groups, forming a surface comprising chemisorptively bound, functional organic groups.
A process for preparing a support material having an increased number of reactive groups, comprising reacting an oxygen-containing inorganic material in an inert aprotic polar or inert aprotic nonpolar solvent with a strongly basic reagent containing one or more alkali metal or alkaline earth metal (M) atoms, the resultant OM groups formed on the surface of the inorganic material optionally being set free by acidifying with an organic or inorganic acid to form OH groups, and reacting or modifying the OH and/or OM groups with coreactive groups in a manner that the oxygen-containing inorganic material
- 1) has bound thereto a metal which is also bound to an organic group, and/or
- 2) has directly bound thereto an organic group.
A process for preparing a support material having an increased number of reactive groups, comprising one or more of the following reactions
- wherein
- M is an alkaline earth metal atom,
- X is H, Hal, alkoxy or acyloxy,
- M′ is an element selected from the group consisting of elements of groups 3A, 3B, 4B, 5B and 6B of the Periodic Table of the Elements,
- Hal is F, Cl, Br, or I,
- Org is A, OA, ACOO, NA2, SA, ANA2, AOH, AOA, (AO)yAr, APA2, APAr2, a saturated or unsaturated cycloalkyl having up to 6 carbon atoms, or a heterocyclic or aromatic radical Ar,
- y is 0, 1, 2, 3, 4,
- A is a straight-chain, branched, saturated or unsaturated alkyl radical having 8 carbon atoms, and
- Ar is a one or more substituted or unsubstituted phenyl, naphthyl, pyridyl, pyrimidinyl, thienyl, furanyl, where the substituents can be A, OA, COOA, Cl, or F, and
- wherein the valence of M′ corresponds to p=n+n′+o, and n=1 to p, n′=0 to p−1, and o=0 to p−n−n′.
Dependencies are inferred from the claim text.