Interaction entre groupes aromatique et polaire voisins—III
1981; Elsevier BV; Volume: 37; Issue: 22 Linguagem: Inglês
10.1016/s0040-4020(01)98883-0
ISSN1464-5416
AutoresL. Nicolas, M. Beugelmans-Verrier, Jean Guilhem,
Tópico(s)Crystallography and molecular interactions
ResumoThe synthesis, 1H and 13C NMR spectra of acids 1 to 4 and methyl esters 5 to 8 are described. Interaction of aromatic and polar groups in the cis acids must be steric in origin and not due to charge transfer complex or hydrogen bonding. The structure of 1e,3a,5e and 7e has been determined by X-Ray crystallography. 1H and 13C NMR studies indicate that, in the cis compounds, the proximity of aromatic and polar groups tend to impose to them some largely predominant conformations which should be analogous in the crystal or in solution.
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