Regiospecific 2+2 photoaddition of phenyl substituted acetylenes to pentafluoropyridine
✍ Scribed by Boris Šket; Marko Zupan
- Book ID
- 108371506
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 282 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0040-4020
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📜 SIMILAR VOLUMES
## Abstract Substituted 1‐acetonaphthones 6b–d and 2‐morpholinoacrylonitrile (2a) undergo a photocycloaddition. The type of addition ([2 + 2] vs. [4 + 2]) is dependent on the location of additional substituents. Whereas compound 6c with a methoxy group at C‐2 gave only the [4 + 2]‐cycloadduct 11, t
The reaction of l-pmethoxyphenyl-3-phenyl-2-propen-l-one and 3-gmethoxyphenyl-l-phenyl-2-propen-lone with methylhydrazine gave 1-methyl-3-p-methoxyphenyl-S-phenylpyrazoline and l-methyl-3-phenyl-Sp-methoxyphenylpyrazoline, respectively. These compounds, on oxidation, gave 1-methyl-3-p-methoxyphenyl-