Francisca Zamora

Synthesis and characterization of optically active polyamides derived from carbohydrate‐based monomers

The synthesis of three new stereoregular AB-type polyamides based on D-ribono-1,4-lactone, L-arabinose, and D-xylose has been carried out by the active ester polycondensation method. These polyamides were characterized by elemental analysis, IR and NMR spectroscopies, and powder X-ray diffraction. They displayed optical activity and had a pronounced affinity to water, although they were not soluble in this solvent. The polyamide obtained from D-ribono-1,4-lactone was highly crystalline and yielded films with spherulitic texture.

Synthesis of carbohydrate-based monomers that are precursors for the preparation of stereoregular polyamides

Abstract The syntheses of some derivatives of 5-amino-5-deoxy-L-arabinonic acid, 5-amino-5-deoxy-D-xylonic acid and ( S )-5-amino-4-hydroxypentanoic acid have been performed in several steps from L-arabinose, D-xylose and (S)-(+)-glutamic acid, respectively. These ω-aminoacids are precursors of bifunctional monomers that could be used for the preparation of optically active polyamides.