Synthesis of l-arabinitol and xylitol monomers for the preparation of polyamides. Preparation of an l-arabinitol-based polyamide Original Research Article

Dihydrochlorides of 1,5-diamino-1,5-dideoxy-2,3,4-tri-O-methyl-l-arabinitol (and xylitol) and pentachlorophenyl esters of 2,3,4-tri-O-methyl-l-arabinaric (and xylaric) acids have been prepared as suitable bifunctional monomers for linear polycondensations. A new aregic AABB-type l-arabinitol-based polyamide is also described from the corresponding monomers. It was crystalline with Tm 250 °C, optically active, and soluble in the usual organic solvents, including chloroform, and in water. Its Mw obtained by GPC was 27,500 with a polydispersity of 1.4.