کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5280820 | 1385656 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Use of the interaction of a boronic acid with a merocyanine to develop an anionic colorimetric assay
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Use of the interaction of a boronic acid with a merocyanine to develop an anionic colorimetric assay Use of the interaction of a boronic acid with a merocyanine to develop an anionic colorimetric assay](/preview/png/5280820.png)
چکیده انگلیسی
A displacement assay based on the interaction of Brooker's merocyanine (BM), a merocyanine dye, with an excess of phenylboronic acid (BA) was studied in acetonitrile. BM is colored in solution, but its reaction with BA yields a colorless covalently linked BA-BM species. This strategy was studied in the presence of different anions (Fâ, Clâ, Brâ, Iâ, H2PO4-, HSO4-, CH3COOâ, and NO3-), but only fluoride, a strongly nucleophilic anion, and to a much lesser extent acetate, reacted with BA-BM, displacing BM through a bimolecular nucleophilic substitution mechanism, and coloring the solution. Experimental data were collected and are shown here in order to gain a better understanding of this chromogenic sensor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 48, Issue 19, 7 May 2007, Pages 3467-3470
Journal: Tetrahedron Letters - Volume 48, Issue 19, 7 May 2007, Pages 3467-3470
نویسندگان
Jaqueline Nicolini, FabÃola M. Testoni, Samya M. Schuhmacher, Vanderlei G. Machado,