Process for the preparation of benzodithiophene compounds
US8853425B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Feb 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of benzodithiophene compounds which comprises reacting a derivative of 3,3′-bithiophene with at least one internal alkyne. Said benzodithiophene compounds can be suitably functionalized and polymerized to give electron-donor compounds which can be used in photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both rigid and flexible supports. Furthermore said benzodithiophene compounds can be advantageously used as spectrum converter in luminescent solar concentrators (LSCs). Said benzodithiophene compound can also be advantageously used as precursor of monomeric units in the preparation of semiconductor polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.