FUNCTIONALIZED DERIVATIVES OF BENZOCROWN ETHERS .1. IONOPHORES CONTAINING AMINO AND PYRIDINIUM GROUPS DERIVED FROM BENZO-15-CROWN-5, BENZO-18-CROWN-6, AND DIBENZO-18-CROWN-6

Citation
M. Barboiu et al., FUNCTIONALIZED DERIVATIVES OF BENZOCROWN ETHERS .1. IONOPHORES CONTAINING AMINO AND PYRIDINIUM GROUPS DERIVED FROM BENZO-15-CROWN-5, BENZO-18-CROWN-6, AND DIBENZO-18-CROWN-6, Liebigs Annalen, (6), 1996, pp. 959-963
Citations number
28
Categorie Soggetti
Chemistry
Journal title
ISSN journal
09473440
Issue
6
Year of publication
1996
Pages
959 - 963
Database
ISI
SICI code
0947-3440(1996):6<959:FDOBE.>2.0.ZU;2-V
Abstract
Acylation reactions of benzocrown ethers with N-phthal-imido-protected derivatives of beta-alanine and 11-aminoundecanoic acid, respectively , were investigated in acid catalysis by using the Eaton reagent. Depr otection of the obtained compounds by hydrazinolysis afforded derivati ves with free amino groups the reaction of which with one or two equiv alents of 2,4,6-trisubstituted pyrylium salts furnished pyridinium der ivatives. All these new benzocrown ether derivatives were characterize d by elemental analysis and IR and NMR spectroscopy.