Method for oxidizing alkanes using novel porphyrins synthesized from dipyrromethanes and aldehydes
US5990363A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1993 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Dec 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/845
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl, and two of the opposed meso atoms or groups being hydrogen or haloalkyl, but not all four of the meso atoms or groups being hydrogen. Other preferred complexes are ones in which all four of the meso positions are substituted with haloalkyl groups and the beta positions are substituted with halogen atoms. A new method of synthesizing porphyrinogens is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.