US 5,922,920 A · Catalytic production of aryl alkyl hydroperoxides by polynuclear transition metal aggregates

Abstract

A method is provided for preparing organic hydroperoxides by oxidizing aryl alkyl hydrocarbons having a benzylic hydrogen with an oxygen containing gas using as a catalyst an oxo (hydroxo) bridged tetranuclear metal complex having a mixed metal core, one metal of the core being a divalent metal selected from Zn, Cu Fe, Co, Ni, Mn or mixtures thereof and another metal being a trivalent metal selected from In, Fe, Mn, Ga, and Al. A method is also provided for the manufacture of the catalyst

Claims1

Dependent claims

A process for the manufacture of phenol and cyclohexanone from cyclohexyl benzene which process comprises;

(a) contacting cyclohexyl benzene with an oxygen-containing gas and an oxo(hydroxo) bridged tetranuclear metal complex having mixed metal core, under catalytic oxidation conditions to form cyclohexylbenzene hydroperoxide and
(b) decomposing the cyclohexylbenzene hydroperoxide to form a mixture comprising phenol and cyclohexanone.

Dependencies are inferred from the claim text.

Facts

Application

08/626,739Filed 2 Apr 1996 · continuation in part

Priority

10 Mar 1995

Granted

13 Jul 1999

Term ends

Not estimatedThe source records don’t support an estimate.

Classification25 codes

C07C 409/14
The —O—O— group being bound between a carbon atom, not further substituted by oxygen atoms, and hydrogen, i.e. hydroperoxides: the carbon atom…
B01J 31/1805
Containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in…
B01J 31/2239
At least two oxygen atoms present in one at least bidentate or bridging ligand: bridging ligands, e.g. OAc in Cr24, Pt48 or dicarboxylate ligands
C07C 39/04
Monocyclic with no unsaturation outside the aromatic ring: phenol

Catalytic production of aryl alkyl hydroperoxides by polynuclear transition metal aggregates

Life of this patent

Catalytic production of aryl alkyl hydroperoxides by polynuclear transition metal aggregates

Life of this patent

Abstract

Claims1