NMR Chemical Shifts of Emerging Green Solvents, Acids, and Bases for Facile Trace Impurity Analysis
نویسندگان
چکیده
The straightforward identification of impurity signals in nuclear magnetic resonance (NMR) spectra is imperative for the structure elucidation and signal assignment synthetic products intermediates. To keep pace with emergence novel green solvents auxiliary compounds (e.g., acids bases), NMR tables databases must be regularly updated. This study reports residual 1H 13C chemical shifts 42 solvents, acids, bases eight namely, dimethylsulfoxide-d6, chloroform-d, D2O, CD3OD, CD3CN, acetone-d6, tetrahydrofuran-d8, toluene-d8. multiplicities coupling constants are also determined herein. analysis recorded provides important information regarding reactivity or multicomponent nature bases. Herein, results this combined earlier on impurities to form a comprehensive database. database forms basis an online interface (http://www.nmrimpurities.com) through which users can browse solvent search unknown origins easily identify spectra.
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ژورنال
عنوان ژورنال: ACS Sustainable Chemistry & Engineering
سال: 2023
ISSN: ['2168-0485']
DOI: https://doi.org/10.1021/acssuschemeng.3c00244