Octafluoro-meso-tetraarylporphyrins and methods for making these compounds
US6124452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The novel compounds of the present invention are .beta.-octafluoro-meso-tetraarylporphyrins of formula (I) and their metallic complexes of formula (II): ##STR1## .beta.-octafluoro-meso-tetraaryl porphyrins are synthesized by reacting 3,4-difluoropyrrole with an aromatic aldehyde in the presence of boron trifluoride etherate, followed by oxidation. The difluoropyrrole used in this reaction is produced by reacting 3,3,4,4-tetrafluoropyrroline or its corresponding salt, 3,3,4,4-tetrafluoropyrrolidinium salt, with a base such as potassium tert-butoxide. The metalloporphyrins of the present invention are synthesized by deprontonating .beta.-octafluoro-meso-tetraarylporphyrin ligands and treating said ligands with metal ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.