Recherches sur la stéréochimie des diènes fonctionnels—X: Etude par Résonance Magnétique Nucléaire d'alcoxybutadiènes 1,3

作者: J. P. Dorie , M. L. Martin , S. Odiot , F. Tonnard

DOI: 10.1002/MRC.1270050604

关键词:

摘要: Les parametres RMN d'alcoxybutadienes 1,3 dependent fortement de la configuration cis ou trans du motif ethylenique. Une discussion des differents types constantes couplage et effets d'additivite substituants sur les deplacements chimiques tente degager facteurs electroniques stereochimiques influences par un changement configuration. L'equilibre conformationnel au niveau liaisons CC CO est discute en faisant appel notamment aux solvant aromatique temperature. The nuclear magnetic resonance parameters of alkoxy-butadienes are strongly on the or ethylenic systems. A different coupling constants and additivity substituent effects chemical shift is proposed. The results applied to identification isomers study electronic stereochemical structure each conformational equilibrium about bonds discussed with special reference aromatic solvent temperature effects.

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