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
✦ LIBER ✦
On the photochemistry of hexamethyl-2,4-cyclohexadienone 4,5-Epoxide and on subsequent rearrangements of its photoisomer, endo-5-acetyl-1,3,3,4,5-pentamethylbicyclo[2.1.0]pentan-2-one
✍ Scribed by Hart, Harold.; Shih, Eng-Mu.
- Book ID
- 126438991
- Publisher
- American Chemical Society
- Year
- 1976
- Tongue
- English
- Weight
- 628 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0022-3263
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## Abstract magnified image A new method for the synthesis of substituted 5‐(2‐hydroxyethyl)‐2‐phenylimino‐1,3‐thiazolidin‐4‐ones and 5‐(2‐hydroxyethyl)‐2‐phenylamino‐4,5‐dihydro‐1,3‐thiazol‐4‐ones is described, starting from phenylthioureas and 3‐bromotetrahydrofuran‐2‐one. The reaction proceeds