C. Luca et Am. Josceanu, THIN-LAYER CHROMATOGRAPHIC BEHAVIOR OF SOME COMMON MACROCYCLIC POLYETHERS, Revue Roumaine de Chimie, 38(10), 1993, pp. 1197-1204
The thin layer chromatographic behaviour of common crown ethers has be
en Studied, pointing out unexpected features. Under certain experiment
al conditions the chromatographic spot is splitted up, as a consequenc
e of the thermodymanic equilibrium established between conformers. Thi
n layer chromatography proves to be proper for searching the way a mac
rocyclic synthesis is carried out, but improper for determining the po
lyether purity.