Editing Cyclopentadiene (section)

===Organic synthesis===
It was the starting material in [[Leo Paquette]]'s 1982 synthesis of [[dodecahedrane]].<ref>{{cite journal |title= Domino Diels–Alder reactions. I. Applications to the rapid construction of polyfused cyclopentanoid systems |journal= [[J. Am. Chem. Soc.]] |year= 1974 |volume= 96 |issue= 14 |pages= 4671–4673 |doi= 10.1021/ja00821a052 |author1-link=Leo Paquette |last1=Paquette |first1= L. A. |last2= Wyvratt |first2= M. J. }}</ref> The first step involved [[redox|reductive]] dimerization of the molecule to give [[Fulvalene|dihydrofulvalene]], not simple addition to give dicyclopentadiene.

[[File:DodecahedranePrecursorSynthesis.png|thumb|center|400px|The start of Paquette's 1982 dodecahedrane synthesis. Note the dimerisation of cyclopentadiene in step&nbsp;1 to dihydrofulvalene.]]
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