F. D. Vega, Y. Sasson, K. Huddersman
Jun 1, 1993
Citations
0
Influential Citations
29
Citations
Journal
Zeolites
Abstract
Abstract The liquid-phase bromination of toluene in a zeolite—bromine—oxirane system has been studied. This system increases selectivity toward the para -bromotoluene isomer due to two factors: first, the oxirane deactivates the sites located on the external surface of the zeolite and, second, a bromine—oxirane complex is formed that is less active and bulkier than is bromine. Using this method, 98% pure para -bromotoluene can be obtained. The catalyst system is deactivated rapidly, presumably due to epoxide polymerization.