Anion Receptors Based on Acyclic Phenol-Formaldehyde Oligomers Bearing Thiourea Groups

Author(s): Yoshihiro Ohba, Takeshi Ito, Toshiro Takasawa, Kazuaki Ito.

Journal Name: Letters in Organic Chemistry

Volume 3 , Issue 4 , 2006

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Abstract:

We prepared anion receptors based on acyclic phenol-formaldehyde oligomer bearing thiourea groups. The dimer (1b) and trimer (1c) showed the binding selectivity toward chloride (Cl-) and hydrogen sulfate (HSO4 -), respectively. This selectivity will be attributed to the fit size and shape of anionic species, which favor formation of a stable host-guest complex through the multiple intermolecular hydrogen bonding.

Keywords: hydrogen bonding, acyclic phenol-formaldehyde oligomer, thiourea, Anion recognition

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Article Details

VOLUME: 3
ISSUE: 4
Year: 2006
Page: [260 - 266]
Pages: 7
DOI: 10.2174/157017806776114603
Price: $65

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