Nitro derivatives of 1,3-calix[4]arene bis-crown-6. Synthesis, structure and complexing properties.
✍ Scribed by Hélène Dozol; Zouhair Asfari; Jacques Vicens; Pierre Thuéry; Martine Nierlich; Jean-François Dozol
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 120 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
The synthesis of methylated calix[4](aza)crowns and their complexing properties towards Co 2+ , Ni 2+ and Cu 2+ are described. The crystal structure of one of those ligands, hydrogen bonded to a picric acid molecule via a water molecule, is given.
## Abstract Four __p‐tert__‐butylcalix[4]arene derivatives with different Schiff base groups at the lower rim were efficiently prepared in three steps. __p‐tert__‐Butylcalix[4]arene was firstly __O‐__peralkylated with __ω__‐haloalkylphthalimide in the system of NaH/DMF to give calixarene tetraalkyl