Reactivity of Intermediates in the Ethylation of Biphenyl over H-Mordenites

摘要

Selective synthesis of 4,4'-DEBP did not occur in the ethylation of BP over HM because 4,4'-DEBP was highest reactivity towards the ethylation among ethylates of BP. Active complex from BP, ethylene, and acid sites in HM pore should allow the formation of DEBP isomers other than 4,4'-DEBP, whereas steric restriction well controls to form 4,4'-DIPB selectively, and to prevent further isopropylation of 4,4'-DIPB.