Method of preparing a thiophene-containing or furan-containing conjugated compound and precursor compound used therein
US5919951A · kind A · utility
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19Claims
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Key dates
| Filing date | Sep 22, 1998 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G61/126
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method of preparing thiophene-containing or furan-containing conjugated compounds such as polythiophene. The method uses a precursor compound having tetrahydrothiophene or tetrahydrofuran precursor units having arylthio or alkylthio substituents. The precursor units can be thermally converted into thiophene or furan units. Due to the presence of the precursor units the precursor compound is soluble and can, unlike the corresponding conjugated compound, be processed from solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.