Photochemistry of 4,4-Dialkoxy-2,5-cyclo
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Paul Margaretha
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Article
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1976
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John Wiley and Sons
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German
β 250 KB
## Abstract Irradiation (Ξ» > 370 nm) of 4,4βdimethoxyβ2,5βcyclohexadienone (**1 a**) in benzene affords mainly the ketene acetal **4 a**, which then undergoes further rearrangement. The carbomethoxycyclopentenones **6** and **7** were isolated in modest yields (10β15Β°). It is conceivable that the l