Determination of the Enantiomeric Ratio of Unprotected Amino Acids by NMR Spectroscopy with C2-Chiral Palladium Compounds

Chiral purity determination of tobacco a

Chiral purity determination of tobacco alkaloids and nicotine-like compounds by 1H NMR spectroscopy in the presence of 1,1′-binaphthyl-2,2′-diylphosphoric acid

✍ Alain Ravard; Peter A. Crooks 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 481 KB 👁 2 views

The enantiomeric purity of several tobacco alkaloids and nicotine-like compounds was determined using 'H NMR (300 MHz) spectroscopy in the presence of (-)-(R)l,l'-binaphthyl-2,2'-diylphosphoric acid (BNPPA) as a chiral complexing agent. The most significant signal splitting resulting from diastereoi