Colorimetric anion chemosensor based on 2-aminobenzimidazole: naked-eye detection of biologically important anions

We synthesized a novel colorimetric anion chemosensor bearing benzimidazole motifs as recognition sites in the pods of the receptor. The addition of tetrabutylammonium salts of F − or AcO − to the solution of receptor caused dramatic color changes from colorless to yellow, which was clearly visible...

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Bibliographic Details
Published inTetrahedron Vol. 63; no. 37; pp. 9106 - 9111
Main Authors Moon, Kyung Soo, Singh, Narinder, Lee, Gang Woo, Jang, Doo Ok
Format Journal Article
LanguageEnglish
Published OXFORD Elsevier Ltd 10.09.2007
Elsevier
Subjects
Anion binding
Benzimidazole
Chemistry
Chemistry, Organic
Colorimetic chemosensor
Physical Sciences
Science & Technology
Anion binding
Colorimetic chemosensor
Benzimidazole
MOLECULAR RECOGNITION
benzimidazole
anion binding
RECEPTORS
BINDING
MOIETIES
colorimetic chemosensor
HOST-GUEST COMPLEXATION
UREA
FLUORIDE
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Summary:We synthesized a novel colorimetric anion chemosensor bearing benzimidazole motifs as recognition sites in the pods of the receptor. The addition of tetrabutylammonium salts of F − or AcO − to the solution of receptor caused dramatic color changes from colorless to yellow, which was clearly visible to the naked eye. The receptor showed no significant changes on addition of other anions such as Cl −, Br −, I −, NO 3 −, and H 2PO 4 −. [Display omitted]
ISSN:0040-4020
1464-5416
DOI:10.1016/j.tet.2007.06.091