ipso-Nitration of Arenes
✍ Scribed by G. K. Surya Prakash; Thomas Mathew
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 262 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The nitration of p-cresol by nitric acid in aqueous sulphuric acid involves me -. 40% ipso-substitution at C . The 4-methyl-4-nitrocyclohexa-2,5-dien-l-one (I)
Compounds in which the carbon skeleton contains at least a diarylmethane with the aromatic rings appropriately substituted by electron donating groups exhibited ipso-nitration when treated with cerium(IV) ammonium nitrate (CAN).
A direct nitration of the upper rim of thiacalix [4]arenes is not possible due to the undesirable oxidation of the sulphur atoms during the nitration step leading to very complicated reaction mixtures. On the other hand, thiacalix[4]arene derivatives can be at first transformed intentionally to the