Patent Profile
| Patent No: | JP4361876 [Japan] | Application No: | JP2004056172 |
| Title: | Process for preparing 2,4,4,6-tetrabromo-2,5-cyclohexadienone | ||
| Issue Date: | 11-11-2009 | File Date: | 23-12-2002 |
| Inventor(s): | Ashutosh Vasant Bedekar; Ramachandraiah Gadde; Pushpito Kumar Ghosh | ||
| IPC Classification: | C07C 45/30, C07C 45/51, C07C 49/687, C07B 61/00 | ||
| Abstract: | A highly pure 2,4,4,6-tetrabromo-2,5-cyclohexadienone has been prepared a single pot, eco-friendly procedure in yields of 91-94 % from phenol. In this method, a mixture of alkali/alkaline earth metal bromide and alkali/alkaline earth metal bromate was employed as brominating agent in place of corrosive liquid bromine. The reaction between phenol and the brominating reagent was initiated by the action of a mineral acid or moderately strong organic acid. The crude product was further characterized by standard analytical and spectroscopic methods. | ||
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Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]