| Summary: | 碩士 === 國立交通大學 === 應用化學系 === 83 === Cyclopentadienyl anion,was obtained from the treatment of cyclo-
adiene with sodium. The reaction of alkyl halides with cyclo-
pentadienyl anion gave the alkyled product. Reaction of
cyclopentadiene with 2 equivalents of sodium followed by
addition of 1,2-dibromoethane and 1,4-dibromobutane gave 1,1-
disubstituted product, spiro (2,4) hepta-4,6-diene, and 1,2-
disubstituted product, 5,6,7,8-tetrahydroindene respectly.
Reaction of these cyclopentadiene derivatives with cis enedione
gave the corresponding endo adducts as the major products.
Ozono- lysis of these endo adducts gave the corresponding
heterocyclic cage compounds with substituent in different sites.
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