| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1346035 | Tetrahedron: Asymmetry | 2005 | 6 Pages |
Cyclic tetraamidic chiral selectors are efficient chiral solvating agents (CSAs) for NMR spectroscopy, which enantiodiscriminate several classes of chiral substrates, mainly endowed with a π-acidic aromatic ring. The great potential of DOSY techniques in the investigation of enantiodiscrimination phenomena, also in complex mixtures, was clearly demonstrated.
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(4R,5R,15R,16R)-4,5,15,16-Tetraphenyl-10,21-bis(octyloxy)-3,6,14,17-tetraazatricyclo[17.3.1.18,12]tetracosa-1(23),8,10,12(24),19,21-hexaene-2,7,13,18-tetraoneC60H68N4O6Ee >99%[α]D25=-72.9 (c 0.2, CHCl3)Source of chirality: (1R,2R)-(+)-1,2-diphenylethylenediamine
(4aR,13aR,17aR,26aR)-1,2,3,4,4a,5,13,13a,14,15,16,17,17a,18,26,26a-Hexadecahydro-9,22-bis(methoxy)-7,11:20,24-dimethenodibenzo[b,m][1,4,12,15]tetraazacyclodocosine-6,12,19,25-tetraoneC30H36N4O6Ee >99%[α]D25=+65.3 (c 0.2, CHCl3)Source of chirality: (1R,2R)-(−)-1,2-diaminocyclohexane
