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Cited by 216

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Sensing of Antipyretic Carboxylates by Simple Chromogenic Calix[4]pyrroles

Nishiyabu, Ryuhei, Anzenbacher, Pavel·2005·Journal of the American Chemical Society

Abstract

We present a simple, two- or three-step method for the synthesis of chromogenic octamethylcalix[4]pyrrole-based (OMCP) sensors for anions. Electrophilic aromatic substitution allows for converting the pyrrole moieties of OMCP into a dye. The formation of a sensor-anion complex results in partial charge transfer and a dramatic change in color. The absorption (UV-vis) and NMR titration experiments show that the chromogenic OMCPs sense anions administered as aqueous solutions, even at high ionic strength ( approximately 0.1 M NaCl), while displaying selectivity for pyrophosphate and carboxylate anions. The experiments with polyurethane sensor films show a strong response for aqueous carboxylates, such as antipyretics naproxen approximately ibuprofen > salicylate, without being biased by bicarbonate or carboxy termini of blood plasma proteins.

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Metadata

Authors
Nishiyabu, R., & Anzenbacher, P.
Venue
Journal of the American Chemical Society
Published
2005-05-24
Volume
127
Issue
23
Pages
8270-8271
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2081989304
Cited by
216
References
0
FWCI
6.51
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Sensing of Antipyretic Carboxylates by Simple Chromogenic Calix[4]pyrroles. https://app.cochat.ai/papers/10.1021/ja051421p
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Nishiyabu, R., & Anzenbacher, P. (2005). Sensing of Antipyretic Carboxylates by Simple Chromogenic Calix[4]pyrroles. Journal of the American Chemical Society. https://doi.org/10.1021/ja051421p

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