@article{oai:kutarr.kochi-tech.ac.jp:00000294,
 author = {Matsumoto, Kazushige and Sawayama, Jun and Hirao, Shotaro and Nishiwaki, Nagatoshi and Sugimoto, Ryuichi and Saigo, Kazuhiko},
 issue = {10},
 journal = {Chirality},
 month = {Oct},
 note = {An improved method, which is highly reproducible, was developed for the enantioseparation of racemic O-ethyl phenylphosphonothioic acid (1a) with brucine by introducing seeding to a supersaturated solution of the diastereomeric salt mixture. The present method gave both diastereomeric salts in high yields with a diastereomeric ratio of >99.5:0.5 upon choosing the crystallization solvent (MeOH for the (R)-1a salt and MeOH/H_2O for the (S)-1a salt). The enantiopure acid 1a showed a good chirality recognition ability for not only strong bases, such as amines and amino alcohols, but also weakly basic alcohols and was applicable as a solvating agent to the ^1H NMR determination of the enantiomeric excess of chiral amines, amino alcohols, and alcohols, including aliphatic substrates.},
 pages = {614--619},
 title = {Enantiopure O-Ethyl Phenylphosphonothioic Acid : A Solvating Agent for the Determination of Enantiomeric Excesses},
 volume = {26},
 year = {2014}
}