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. Ce-travail-décrit-la-synthèse, étude structurale de 1:1-[?/?-N ? -Bn-hydrazino]mères linéaires et cycliques Après avoir mis au point une méthode générale de synthèse en solution des ?-N ? hydrazinoesters diversement substitués sur l'azote alpha, ces derniers ont été engagés dans l

R. Des-Études-conformationnelles-utilisant-la, IR et les RX ont permis de montrer que la présence de l'azote supplémentaire dans le squelette permettait l'établissement de liaisons hydrogène intramoléculaires conduisant à la formation d'hydrazinoturn. Ainsi l'alternance d'acides ?-aminés naturels et d'?-hydrazinoacides conduit à une auto-structuration des oligomères linéaires par formation de ?-turn et d'hydrazinoturn