117666-50-9Relevant academic research and scientific papers
MACROHETEROCYCLES. XXXIII. BINUCLEAR CHIRAL CROWN ETHERS
Luk'yanenko, N. G.,Lobach, A. V.,Lyamtseva, L. N.,Nazarova, N. Yu.,Karpenko, L. P.
, p. 284 - 290 (2007/10/02)
The condensation of (2S, 3S)-butane-1,2,3,4-tetrol with the ditosyl derivative of polyethylene glycol leads to mixtures of the structural isomers of binuclear chiral crown ethers.The individual compounds were isolated by chromatographic methods, and their structures were demonstrated by alternative synthesis and by their spectral data.The enantioselectivity in the complexation of the obtained compounds with the hydrochlorides of L- and D-valine methyl esters was determined by potentiometry.
