Photochemical rearrangement of 4,4-disubstituted-4-sila-2,5-cyclohexadienones
β Scribed by Koch, Tad H.; Soderquist, John A.; Kinstle, Thomas H.
- Book ID
- 127231453
- Publisher
- American Chemical Society
- Year
- 1974
- Tongue
- English
- Weight
- 383 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0002-7863
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## 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
IT is well established that 4-ntethylcyclohexadienones of the santonin type undergo photochemical transformation in aqueous acetic acid to perhydroasulene derivatives of the isophotosantonic la&one type.' The photochemical properties of cyclohexadienones which are unsubstituted at C4 have also been
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