Synthesis of two calix[4]arenes in 1,3-alternate conformation containing hard and soft ion binding sites
β Scribed by Wanlapa Aeungmaitrepirom; Zouhair Asfari; Jacques Vicens
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 257 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
It is reported the synthesis of ligands 6 and $ combining one calix[4]arene unit in the 1,3-alternate conformation and crown ether and aza crown ether elements. Preliminary comp|exations are given.
π SIMILAR VOLUMES
A conformationally preorganized, C s -symmetrical p-tert-butyl-calix[6]-1,4-crown-4-2,6-dioxo-diazacrown-4 with hard and soft ion binding sites at the lower rim is synthesized. The binding sites may complex alkali metal ions or transition metal ions selectively.
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
## Abstract Syntheses of 1,3β2,4βcalix[4]bisβcrown ethers (**1** and **2**) fixed in the 1,3βalternate conformation by 1,3β and 2,4βbridges made of two modified polyether chains each containing two 1,2βphenylene residues and one pyridine or anisyl unit are reported. The structures of compounds **1*