On May 7, 2021, Milic, Mira; Targos, Karina; Tellez Chavez, Magda; Thompson, Madison A. M.; Jennings, Julia J.; Franz, Annaliese K. published an article.Reference of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine The title of the article was NMR Quantification of Hydrogen-Bond-Accepting Ability for Organic Molecules. And the article contained the following:
The hydrogen-bond-accepting abilities for more than 100 organic mols. are quantified using 19F and 31P NMR spectroscopy with pentafluorobenzoic acid (PFBA) and phenylphosphinic acid (PPA) as com. available, inexpensive probes. Anal. of pyridines and anilines with a variety of electronic modifications demonstrates that changes in NMR shifts can predict the secondary effects that contribute to H-bond-accepting ability, establishing the ability of PFBA and PPA binding to predict electronic trends. The H-bond-accepting abilities of various metal-chelating ligands and organocatalysts are also quantified. The measured Δδ(31P) and Δδp(19F) values correlate strongly with Hammett parameters, pKa of the protonated HBA, and proton-transfer basicity (pKBH+). The experimental process involved the reaction of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine(cas: 109660-12-0).Reference of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine
The Article related to hydrogen bond accepting ability nmr chem shift, Physical Organic Chemistry: Resonance Spectra (Electron Spin, Nuclear Magnetic and Fourier Transform Nuclear Magnetic, Quadrupole, etc.) and other aspects.Reference of 2-(4,5-Dihydro-4,4-dimethyl-2-oxazolyl)pyridine