Tweezers-Type Anion Receptors Based on Diphenoxymethane and Biphenol Bearing Urea Groups

Author(s): Shintaro Higuchi, Kazuaki Ito.

Journal Name: Letters in Organic Chemistry

Volume 4 , Issue 6 , 2007

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Diphenoxymethane (1a and 1b) and biphenol derivatives (1c and 1d) bearing urea groups were prepared to be used in anion recognition. Diphenoxymethane derivative (1a) selectively bound chloride anion (Cl-) in 1:1 complexes. However, biphenol derivatives (1c and 1d) did not show a clear selectivity in anion recognition. The association constants of the complexes were determined by 1H-NMR titrations in CDCl3.

Keywords: Anion receptor, urea, biphenol, diphenoxymethane, chloride anion selectivity

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Article Details

Year: 2007
Page: [404 - 408]
Pages: 5
DOI: 10.2174/157017807781467597
Price: $65

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