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Synthesis of Tricyclo [6.2.1.01,5]undecadiones via Intramolecular Photoaddition of 5-(1-Cyclopentenylmethyl)-3-alkoxy-2-cyclopentenones

ContributorsVon Oppolzer, Wolfgang; Burford, Sidney C.
Published inHelvetica chimica acta, vol. 63, no. 4, p. 788-792
Publication date1980-06-06
Abstract

Irradiation of the dienone methyl ether 3a furnished the unstable regioisomeric photoadducts 4a and 5a which on Lewis acid-catalyzed fragmentation afforded the tricyclic diketones 6,7 and 8. The same mixture was obtained from the isobutyl ether 3b (Scheme 2).

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VON OPPOLZER, Wolfgang, BURFORD, Sidney C. Synthesis of Tricyclo [6.2.1.0<sup>1,5</sup>]undecadiones <i>via</i> Intramolecular Photoaddition of 5-(1-Cyclopentenylmethyl)-3-alkoxy-2-cyclopentenones. In: Helvetica chimica acta, 1980, vol. 63, n° 4, p. 788–792. doi: 10.1002/hlca.19800630406
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Commercial URLhttps://onlinelibrary.wiley.com/doi/10.1002/hlca.19800630406
ISSN of the journal0018-019X
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