The reaction of ammonia with acylated disaccharides. Part IX. Acetyl derivatives of melibiose

The reaction of methanolic or aqueous ammonia with octa-O-acetyl-β-melibiose gives N-acetyl-6-O-α-D-galactopyranosyl-β-D-glucofuranosylamine (I), and 1,1-bis(acetamido)-1-deoxy-6-O-α-D-galactopyranosyl-D-glucitol (IV). The structure of the furanoid compound was demonstrated by oxidation with perioda...

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Detalles Bibliográficos
Autores principales: Zanlungo, A.B., Deferrari, J.O., Cadenas, R.A.
Formato: JOUR
Materias:
ammonium derivative
disaccharide
galactose
glucose
article
chemistry
Ammonium Compounds
Chemistry
Disaccharides
Galactose
Glucose
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00224952_v_n14_p1908_Zanlungo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The reaction of methanolic or aqueous ammonia with octa-O-acetyl-β-melibiose gives N-acetyl-6-O-α-D-galactopyranosyl-β-D-glucofuranosylamine (I), and 1,1-bis(acetamido)-1-deoxy-6-O-α-D-galactopyranosyl-D-glucitol (IV). The structure of the furanoid compound was demonstrated by oxidation with periodate. The factors which determine the different yields of these products in both media are discussed and the yields are compared with those of nitrogenated products obtained by ammonolysis of acetates of 1,4-linked disaccharides.

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