TY - JOUR
T1 - Highly selective bromination of toluene in a bromine-oxirane-zeolite system
AU - de la Vega, Fernando
AU - Sasson, Yoel
AU - Huddersman, Katherine
PY - 1993/6
Y1 - 1993/6
N2 - 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.
AB - 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.
KW - aromatic
KW - Bromination
KW - oxirane
KW - p-bromotoluene
KW - selectivity
KW - zeolites
UR - http://www.scopus.com/inward/record.url?scp=0027608087&partnerID=8YFLogxK
U2 - 10.1016/0144-2449(93)90148-V
DO - 10.1016/0144-2449(93)90148-V
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AN - SCOPUS:0027608087
SN - 0144-2449
VL - 13
SP - 341
EP - 347
JO - Zeolites
JF - Zeolites
IS - 5
ER -