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New quaternary ammonium salts and metal complexes of organylheteroacetic acids with diaza-18-crown-6 ether

✍ Scribed by S. N. Adamovich; A. N. Mirskova; R. G. Mirskov; O. M. Perminova; N. N. Chipanina; T. N. Aksamentova; M. G. Voronkov


Book ID
111460563
Publisher
Springer
Year
2010
Tongue
English
Weight
159 KB
Volume
80
Category
Article
ISSN
1070-3632

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Synthesis of chiral diaza 18-crown-6 eth
✍ N. Demirel; Y. Bulut πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 181 KB

A practical synthesis of chiral amine precursors 3 and 4 and chiral diaza 18-crown-6 ethers 5, 6 and 7 starting from chiral amines are reported. The molecular recognition of these chiral crown ethers for amino acids potassium and sodium salts has been characterized by UV-vis. The selectivity order i