Reactions of Lithium Silylcuprates with Pyrazolium and Indazolium Salts
✍ Scribed by Ana M. González-Nogal; Mariola Calle; Purificación Cuadrado
- Book ID
- 102177386
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 235 KB
- Volume
- 2007
- Category
- Article
- ISSN
- 1434-193X
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📜 SIMILAR VOLUMES
## Abshnct 1,3,5-trisubstituted-2-methylpyrazolium iodides react with dimethylphenylsilyl-and twtbutyldiphenylsilyllithium leading, in general, to one of the corresponding S-silyl-3-pyrazolines The silyl group is easily substituted by electrophiles to give 5-tinctionalized 3-pyrazolines.Moreover.
2-Pyrazolin-4-oximes have been synthesized by reaction of 4-nitroso-and 4nitropyrazoles with complex metal hydrides and organometallic reagents. Furthermore, 4nitropyrazolium tetrafluoroborates are reactive substrates towards organolithium and Grignard compounds leading to new and highly substituted