Substituted benzotelluropyrones
US4434098A · kind A · utility
2Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Jul 1, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D345/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses novel substituted benzotelluropyrones and a novel method for making such compositions. The compositions are useful as intermediates for making benzotelluropyrylium and benzotelluropyrylium diketonate electron dye sensitizers for electron donating photoconductive compositions and elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.