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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 11, Number 5
BKCSDE 11(5)
May 20, 1990 

Acidic and Catalytic Properties of Modified Silica Catalyst with Benzenesulfo Groups
Jong Rack Sohn, Sam Gon Ryu, Young Il Pae, Sang June Choi*
Two types of new silica catalysts modified with benzenesulfonic acid derivatives were prepared by esterification or phenylation followed by sulfonation. Both catalysts thus prepared were tested as acid catalysts for 2-propanol dehydration and cumene dealkylation reactions. B catalyst (≡Si-C6H4SO3H) were more active than A catalyst (≡Si-OCH2-C6H4-SO3H). Highter catalytic activity for B catalyst may be accounted for by higher resistance to water, higher acid strength, more acidity, and better thermal stability as compared with A catalyst.
403 - 406
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