The invention relates to a catalyst for benzene hydroxylation for preparation of phenol and a preparation method thereof, wherein said catalyst uses a mesoporous material as carrier, and the catalyst is prepared by first modifying the surface of the carrier using aminosilane, then immersing with acetylacetonate salt of metal, and finally washing and drying. Advantage of the invention is that a reactive metal is loaded on the silane-modified mesoporous material to form a homogeneous-heterogeneous composite catalyst, wherein, the reactive metal component is present in a reaction system in a homogeneous form, which ensures high catalytic performance of the catalyst component, and it is loaded on the carrier through bridging action of aminosilane, which improves the acting force between the metal component and the carrier, enhances stability of the catalyst, and facilitates separation of the catalyst from the product. The catalyst has a simple preparation process, has excellent catalytic performance, and can be applied to the reaction system of benzene hydroxylation for preparation of phenol.

The invention relates to a catalyst for benzene hydroxylation for preparation of phenol and a preparation method thereof, wherein said catalyst uses a mesoporous material as carrier, and the catalyst is prepared by first modifying the surface of the carrier using aminosilane, then immersing with acetylacetonate salt of metal, and finally washing and drying. Advantage of the invention is that a reactive metal is loaded on the silane-modified mesoporous material to form a homogeneous-heterogeneous composite catalyst, wherein, the reactive metal component is present in a reaction system in a homogeneous form, which ensures high catalytic performance of the catalyst component, and it is loaded on the carrier through bridging action of aminosilane, which improves the acting force between the metal component and the carrier, enhances stability of the catalyst, and facilitates separation of the catalyst from the product. The catalyst has a simple preparation process, has excellent catalytic performance, and can be applied to the reaction system of benzene hydroxylation for preparation of phenol.

The invention relates to a catalyst for benzene hydroxylation for preparation of phenol and a preparation method thereof, wherein said catalyst uses a mesoporous material as carrier, and the catalyst is prepared by first modifying the surface of the carrier using aminosilane, then immersing with acetylacetonate salt of metal, and finally washing and drying. Advantage of the invention is that a reactive metal is loaded on the silane-modified mesoporous material to form a homogeneous-heterogeneous composite catalyst, wherein, the reactive metal component is present in a reaction system in a homogeneous form, which ensures high catalytic performance of the catalyst component, and it is loaded on the carrier through bridging action of aminosilane, which improves the acting force between the metal component and the carrier, enhances stability of the catalyst, and facilitates separation of the catalyst from the product. The catalyst has a simple preparation process, has excellent catalytic performance, and can be applied to the reaction system of benzene hydroxylation for preparation of phenol.

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

Processes for converting an olefin reactant into a diol compound are disclosed, and these processes include the steps of contacting the olefin reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the diol compound. While being contacted, the olefin reactant and the supported chromium catalyst can be irradiated with a light beam at a wavelength in the UV-visible spectrum. Optionally, these processes can further comprise a step of calcining at least a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst.

Provided is a process for recovery of a functionalized compound reaction product comprising contacting (i) an oxidizing electrophile comprising a main group element, and (ii) a compound comprising at least one CH bond, in an acidic medium to form a reaction milieu comprising a functionalized compound reaction product, contacting the reaction milieu with a water-immiscible organic solvent, separating the water-immiscible organic solvent from the reaction milieu, wherein the functionalized compound reaction product is dissolved in the water-immiscible organic solvent, and separating the functionalized compound reaction product and the water-immiscible organic solvent. The water-immiscible extraction solvent can be the same compound as the compound comprising as least one CH bond, for example, propane or n-butane.

Provided is a process for recovery of a functionalized compound reaction product comprising contacting (i) an oxidizing electrophile comprising a main group element, and (ii) a compound comprising at least one CH bond, in an acidic medium to form a reaction milieu comprising a functionalized compound reaction product, contacting the reaction milieu with a water-immiscible organic solvent, separating the water-immiscible organic solvent from the reaction milieu, wherein the functionalized compound reaction product is dissolved in the water-immiscible organic solvent, and separating the functionalized compound reaction product and the water-immiscible organic solvent. The water-immiscible extraction solvent can be the same compound as the compound comprising as least one CH bond, for example, propane or n-butane.

Disclosed herein are reaction compositions comprising an oxidation catalyst, a solvent, and a substrate that is dissolved in the solvent. The oxidation catalyst comprises a metal ion complexed with an -keto acid and a tridentate N,N,O-ligand. Also disclosed herein are methods for oxidizing a CH bond of a molecule, the methods comprising contacting the molecule with a metal complex comprising a metal ion complexed with a tridentate N,N,O-ligand in the presence of an -keto acid and a solvent. In some embodiments, the oxidation catalyst or metal complex is linked to a solid support.