Solvent effects of pyridine on the NMR spectra of carboxylic acids. I—study of the acrylic, trans-crotonic and 3-butenoic acids

✍ Scribed by Jaakko Paasivirta; Erkki Kolehmainen

• Publisher: John Wiley and Sons
• Year: 1975
• Tongue: English
• Weight: 249 KB
• Volume: 7
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1270070708

✦ Synopsis

Abstract

Proton magnetic resonance spectral parameters of acrylic, trans‐crotonic and 3‐butenoic acids, their methyl esters and the corresponding alcohols (COOH substituted by CH~2~OH) have been measured for 5% (w/v) solutions in carbon tetrachloride and in pyridine‐d~5~ at 33·5 °C. The total solvent effect of pyridine on the shifts of the skeleton protons of the acid was found to consist of three different effects independently measured from the reference samples.