Cycloalkane catalytic oxidation method promoted by iron porphyrin

Abstract

The invention relates to a cycloalkane catalytic oxidation method promoted by iron porphyrin. O2 is taken as an oxidant, Co (II) porphyrin and Mn (II) porphyrin are taken as main catalysts, and Fe (II) porphyrin is taken as a cocatalyst to carry out reacting at a temperature of 100-160 DEG C and pressure of 0.8-2.0MPa under a solvent-free condition to realize catalytic oxidation of cycloalkanes. The cycloalkanes mainly comprise cyclopentane, cyclohexane, cycloheptane, cyclooctane and cyclononane, and the corresponding oxidation products mainly comprise cycloalkyl alcohols, cycloalkyl ketones and alkyl diacids. The cycloalkane catalytic oxidation method has the advantages of high selectivity of cyclopentanone, cyclohexanol, cycloheptanone and cyclooctanone, small catalyst consumption and simple operation, and environmental friendliness is achieved by taking clean O2 as the oxidant. The disclosesd cycloalkane catalytic oxidation method promoted by iron porphyrin is a cycloalkane catalytic oxidation method with high product selectivity, simple operation and environmental friendliness.

Description

technical field

[0001] The invention belongs to the field of catalytic organic synthesis, and relates to a catalytic oxidation method of cycloalkane promoted by iron porphyrin. Background technique

[0002] Catalytic oxidation of naphthenes is an important chemical transformation process. The oxidation products cycloalkyl alcohols and cycloalkyl ketones are not only important chemical intermediates, but also can be further oxidized to prepare alkyl diacids, which are used to prepare various An important precursor of a polymer material. At the same time, the cycloalkane oxidation process can also generate alkyldiacids, which can be directly used in the preparation of various polymer materials. For example, the main products of cyclohexane catalytic oxidation, cyclohexanol and cyclohexanone, can be further oxidized to obtain adipic acid, an important precursor for the production of nylon-66 and nylon-6, and the market demand is very large (Angew.Chem.Int.Edit., 2016 , 55:128...

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