Chemistry Letters p. 1741 - 1744 (1984)
Update date:2022-08-04
Topics:
Yamashita, Yoshiro
Mukai, Toshio
A series of pentacyclic cage ketones 2b-d having no substituent was synthesized by the photochemical <2+2>-cycloaddition reaction of corresponding tricyclic dienones 1b-d.The cage ketones 2b-d underwent thermal <2+2>-cycloreversion to give dienones 1b-d.The reactivities were dependent on the length of the bridge "X".
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