NMR in chiral polypeptide liquid crystals: the problem of amines

…, MC Lasne, J Rouden, J Courtieu, A Meddour

Index: Solgadi, Audrey; Jean, Ludovic; Lasne, Marie-Claire; Rouden, Jacques; Courtieu, Jacques; Meddour, Abdelkrim Tetrahedron Asymmetry, 2007 , vol. 18, # 13 p. 1511 - 1516

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Citation Number: 7

Abstract

It is shown that lyotropic liquid crystal mixtures made of poly-γ-benzyl-l-glutamate (PBLG) dissolved in N, N-dimethylformamide (DMF) are efficient anisotropic NMR solvents to distinguish the enantiomers of chiral amines through the effects of the differential ordering of enantiomers. This type of solvent overcomes problems often encountered when dissolving amines into the more conventional PBLG/CHCl3 or PBLG/CH2Cl2 liquid crystals. ...