Visualisation of axial chirality using 2H-{1H} NMR in poly(γ-benzyl L-glutamate), a chiral liquid crystal solvent

Chemical Communications

Volumn , Issue 21, 1997, Pages 2031-2032

  Smadja, William ^a   Auffret, Sandie ^a   Berdagué, Philippe ^a   Merlet, Denis ^a   Canlet, Cécile ^a   Courtieu, Jacques ^a   Legros, Jean Yves ^a   Boutros, André ^a   Fiaud, Jean Claude ^a  

^a CNRS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0007545848     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/a705036d     Document Type: Article

References (18)

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2. 2H NMR of CDAs, have previously been described, see D. Parker, J. Chem. Soc., Perkin Trans. 2, 1983, 83.
3. For synthesis of α-allenols, see: (a) J. S. Cowie, P. D. Landor and S. R. Landor, J. Chem. Soc., Chem. Commun., 1969, 541;
4. (b) L.-I. Olsson and A. Claesson, Acta Chem. Scand., Ser. B, 1977, 31, 614; see also
5. (c) H. F. Schuster and G. M. Coppola, Allenes in Organic Chemistry, Wiley, New York 1984, p. 132-45.
6. For synthesis of bromoallenes, see ref. 2(c) pp. 272-280.
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10. (b) see ref. 2(b); CDAs:
11. (c) P. Salvadori, G. Uccello-Baretta, R. Lazzaroni and A. M. Caporusso, J. Chem. Soc., Chem. Commun., 1990, 1121;
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13. see also A. Alexakis, J. C. Frutos, S. Mutti and P. Mangeney, J. Org. Chem., 1994, 59, 3326; CSAs;
14. (e) G.Uccello-Baretta, F. Balzano, A. M. Caporusso and P. Salvadori, J. Org. Chem., 1994, 59, 836. Enantiomers of trisubstituted bromoallenes have been visualised with Δδ = 1.8 Hz on a 300 MHz machine.
15. 1H} NMR in PBLG, see (a) J. P. Bayle, J. Courtieu, E. Gabetty, A. Lowenstein and J.-M. Péchiné, New J. Chem., 1992, 16, 1837;
16. (b) A. Meddour, I. Canet, A. Lowenstein, J.-M. Péchiné and J. Courtieu, J. Am. Chem. Soc., 1994, 116, 9652;
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