A. Solis et al., (S)-NAPROXEN(R) AS A DERIVATIZING AGENT TO DETERMINE ENANTIOMERIC EXCESS OF CYANOHYDRINS BY HPLC, Tetrahedron letters, 39(48), 1998, pp. 8759-8762
An easy, inexpensive and accurate method to determine enantiomeric exc
ess of cyanohydrins is described. The method consists in derivatizatio
n of cyanohydrins with (S)-naproxen(R) chloride and the products analy
zed by HPLC. The results of enantiomeric excess so determined are simi
lar to those obtained with [Eu(hfc)(3)], as a chiral shift reagent, an
d analysis by H-1-NMR of the cyanohydrins. (C) 1998 Elsevier Science L
td. All rights reserved.