5,15-diarylbenzochlorin-7-one compounds
US5656756A · kind A · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel 5,15-diarylbenzochlorin-7-one compound having the formula (I) or (II): ##STR1## wherein M is a metal. A novel method for synthesizing the compound of formula (I) comprises the steps of: PA1 a. cyclizing a meso-(formylvinyl) 5,15-diarylporphyrin to form a cyclization reaction mixture, and PA1 b. oxidizing said reaction mixture to form the 5,15-diarylbenzochlorin-7-one of formula (I). A novel method for synthesizing the compound of formula (II) comprises the cyclizing and oxidizing steps listed above and, either prior to or after the oxidizing step, adding the step of demetallating the compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.