ISSN:
1572-879X
Keywords:
Biphenyl
;
4,4′-diisopropylbiphenyl
;
highly dealuminated H-mordenite
;
shape-selective isopropylation
;
isomerization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A highly dealuminated H-mordenite (H-M) catalyzed the selective isopropylation of biphenyl to 4,4′-diisopropylbiphenyl (4,4′-DIPB). The high selectivity is ascribed to the shape-selective catalysis in mordenite pores. The selectivity of 4,4′-DIPB decreased during the isopropylation of biphenyl due to isomerization of 4,4′-DIPB under low propylene pressure. The increase of propylene pressure suppressed the isomerization in the isopropylation. 4,4′-DIPB itself was isomerized over highly dealuminated H-M under low propylene pressure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00767372
Permalink