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Letters in Organic Chemistry


ISSN (Print): 1570-1786
ISSN (Online): 1875-6255

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

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

Volume 3, Issue 4, 2006

Page: [260 - 266] Pages: 7

DOI: 10.2174/157017806776114603

Price: $65


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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