Conformation of <i>N</i><sup>α</sup>-Substituted Hydrazino Acetamides in CDCl<sub>3</sub>, the Precious Help of the Analysis of Δδ between Amidic Hydrogens, and Correlation to the Conformation of Aza-β<sup>3</sup>-peptides
作者:Arnaud Salaün、Annaïck Favre、Barbara Le Grel、Michel Potel、Philippe Le Grel
DOI:10.1021/jo051887q
日期:2006.1.1
adopted by hydrazino acetamides 1a and 1b as model compounds for aza-β3-peptides. In this manner, it was possible to show that the amidic group of these compounds acts as a H-bond donor and interacts with two different H-bond acceptors. We concluded that the hydrazinoturn, a specific bifurcated H-bond system observed in the solid state, is also the preferred conformation of hydrazino acetamides 1a and 1b