CIHIDECAR 12529
CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Unidad Ejecutora - UE
artículos
Título:
Facile synthesis of a D-galactono-1,6-lactone derivative, a precursor of a copolyester.
Autor/es:
ROMERO ZALIZ, LORENA; VARELA, OSCAR
Revista:
CARBOHYDRATE RESEARCH
Editorial:
Elsevier Science
Referencias:
Lugar: New York, USA; Año: 2006 vol. 341 p. 2973 - 2977
ISSN:
0008-6215
Resumen:
2,3,4,6-Tetra-O-methyl-D-galactonic acid (5) was readily prepared from D-galactono-1,4-lactone (1) in 47% yield. The sequence involves tritylation of HO-6 of 1, followed by O-permethylation and deprotection. Lactonization of 5 led to the per-Omethyl-D-galactono-1,6-lactone, which was copolymerized with w-caprolactone by ring-opening polymerization catalyzed by scandium triflate. The incorporation of the sugar comonomer into the polyester chain was about 10%.
