Journal of Organic Chemistry p. 3155 - 3160 (1985)
Update date:2022-08-23
Topics:
Dauben, William G.
Rocco, Vincent P.
Shapiro, Gideon
The intramolecular <2 + 2> photocycloaddition of 4-(3,4-pentadienyl)cyclopent-2-en-1-ones has been shown to yield the expected straight cycloaddition product, a tricyclo<4.2.1.04,9>nonanone, and a novel product, a tricyclo<4.3.1.04,10>decenone, with a bridgehead double bond.The reaction course can be controlled by side-chain substituents and by the temperature of the reaction.
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(1963)
