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  • Synthesis of a Fluorescent Solvatochromic Resin Using Suzuki-Miyaura Cross-Coupling and Its Optical Waveguide Spectra to Measure the Solvent Polarity on the Surface.

Synthesis of a Fluorescent Solvatochromic Resin Using Suzuki-Miyaura Cross-Coupling and Its Optical Waveguide Spectra to Measure the Solvent Polarity on the Surface.

Materials (Basel, Switzerland) (2020-10-15)
Yu Otsuka, Guanglei Li, Hiromi Takahashi, Hisashi Satoh, Koji Yamada
ABSTRACT

We have established a novel analytical method for solvent polarity on resin surface by combining the synthesis of fluorescent solvatochromic resin with optical waveguide spectrometry. The fluorescent solvatochromic resin was obtained via Suzuki-Miyaura cross-coupling between 4-iodobenzoic acid immobilized on Wang resin and 5-[4-(N,N-dihexylamino)phenyl]-2-thienylboronic acid N-methyl-iminodiacetic acid (MIDA) ester. The optical waveguide spectrometry studies on the resin showed a strong fluorescent solvatochromism in various organic solvents.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Bis(pinacolato)diboron, 99%
Sigma-Aldrich
5-Bromo-2-thienylboronic acid, ≥95%
Sigma-Aldrich
Methyliminodiacetic acid, 99%