Synthesis of chiral crown ethers and complexation with chiral protonated amine compounds
[ X ]
Tarih
2004
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The X-ray crystal structure of IX, perchlorate salt of R-(-)-2-ethyl-N-benzyl-4,7,19,13-tetraoxa-8,9-benzo-1-azacyclopentadec-8-ene has been determined. In the molecule, the protonated nitrogen atom participates in two N-(HO)-O-... hydrogen bonds. The unusually high proton affinity of aza crown ether leads to the formation of diastreomer instead of complex formation with chiral R-(+)-1-phenyl ethyl ammonium perchlorate and S-(-)-1-phenyl ethyl ammonium perchlorate. The complex ability of host ethers was evaluated in terms of structural modification.
Açıklama
Anahtar Kelimeler
Chiral Crown Ether, Crystal Structure, Molecular Recognition
Kaynak
Journal of Inclusion Phenomena and Macrocyclic Chemistry
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
50
Sayı
3-4
