摘要：

Pyrolysis of 1,2,3,3a,8,8a-hexahydro-2,3,8-methenocyclopentindene in a flow system at 1.33 mbar, in an argon atmosphere and at temperatures between 500 and 750 °C was studied by GC/MS. The first pyrolysis product, 1,6-dihydro-1,6-methanobenzo[d]cyclooctene (a new compound), was converted at elevated temperatures into mainly α- and β-allylnaphthalenes and fluorene. A reaction mechanism including radical and concerted steps is suggested.

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