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Titolo:
Synthesis of pyridinocrownophanes exhibiting high Ag+-affinity
Autore:
Inokuma, S; Kimura, K; Funaki, T; Nishimura, J;
Indirizzi:
Gunma Univ, Dept Chem, Kiryu, Gumma 3768515, Japan Gunma Univ Kiryu GummaJapan 3768515 pt Chem, Kiryu, Gumma 3768515, Japan
Titolo Testata:
HETEROCYCLES
fascicolo: 1, volume: 54, anno: 2001,
pagine: 123 - 130
SICI:
0385-5414(20010101)54:1<123:SOPEHA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRAMOLECULAR 2+2 PHOTOCYCLOADDITION; ENANTIOMERIC RECOGNITION; STYRENE DERIVATIVES; CROWN ETHERS; BORONIC ACID; EXTRACTION; TRANSPORT; PODANDS;
Keywords:
[2+2] photocycloaddition; crownophane; pyridinocrown ether; liquid-liquid extraction; cation complexation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Inokuma, S Gunma Univ, Dept Chem, 1-5-1 Tenjin Cho, Kiryu, Gumma 3768515, Japan Gunma Univ 1-5-1 Tenjin Cho Kiryu Gumma Japan 3768515 15, Japan
Citazione:
S. Inokuma et al., "Synthesis of pyridinocrownophanes exhibiting high Ag+-affinity", HETEROCYCLE, 54(1), 2001, pp. 123-130

Abstract

Crownophanes possessing a pyridine moiety were prepared by means of intramolecular [2 + 2] photocycloaddition of the styrene derivatives. The crown compounds having six to ten ethereal oxygens selectively extracted Ag+ with high efficiency in the liquid-liquid extraction. The high extractability and efficiency were maintained even at low pH region of the extraction system. From ESI-MS analysis, it was found that the crownophanes formed some kinds of complexes having 1:1 and 2:1 stoichiometry (host/guest) with Ag+ and Pb2+ in MeCN-H2O homogeneous system.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 14:13:54