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Structural constraints on electrocyclic reactions of unsaturated ketenes. Synthesis and irradiation of 2,4,4,5-tetramethylbicyclo[4.2.0]octa-1,5-dien-3-one

โœ Scribed by Bastiani, Richard J.; Hart, Harold.


Book ID
126444773
Publisher
American Chemical Society
Year
1972
Tongue
English
Weight
560 KB
Volume
37
Category
Article
ISSN
0022-3263

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Structural effects on 2,4-cyclohexadieno
โœ Richard J. Bastiani; David J. Hart; Harold Hart ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 193 KB

Irradiation of 2,4-cyclohexadienones (L) usually produces ketenes. Most commonly, these ketenes either thermally recyclize to dienone or, in the presence of nucleophiles, react to form open-chain unsaturated acids or their derivatives.lm4 In special cases, however, the ketene may thermally cyclize t