Abstract

Abstract Graphite lamellar catalysts of acids; SbF5, SbF5–HF and AlBr3–Br2 were found to be effective for the isomerization and cleavage reactions of pentane and hexane at room temperature. Graphite-SbF5–HF catalyst was excellent and gave skeletal isomerization products exclusively from pentane and hexane. Graphite-AlBr3–Br2 catalyst showed a highly catalytic activity to yield C4∼C7 alkanes which were formed via the β-cleavage reaction of oilgomeric alkyl cations derived from starting alkanes. Graphite-SbF5catalyst exhibited catalytic behavior and gave skeletal isomerization products exclusively for pentane but gave C4∼C7 alkanes as the major products for hexane.

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