Method for producing fluorene derivative
US8841491B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2010 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Apr 21, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing a fluorene derivative by reacting fluorenone with a phenol or a phenoxyalcohol in the presence of an acid catalyst includes: adding an alkali to an obtained reaction liquid containing a fluorene derivative; and concentrating a resultant mixture liquid without removing the alkali thus added and a reaction product of the alkali, thereby separating an unreacted phenol or unreacted phenoxyalcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.