Patent Profile
| Patent No: | CN1291963 [China] | Application No: | CN2002830096 |
| Title: | Process for preparing 2,4,4,6-tetrabromo-2,5-cyclohexadienone | ||
| Issue Date: | 27-12-2006 | File Date: | 23-12-2002 |
| Inventor(s): | Ashutosh Vasant Bedekar; Gadde Ramachandraiah; Ghosh Pushpito Kumar | ||
| IPC Classification: | C07C 45/51, C07C 49/687 | ||
| Abstract: | A highly pure 2,4,4,6 -tetrabromo-2, 5 -cyclohexadienone has been prepared in 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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