Abstract:
By heating tetra-O-benzoyl-α-D-mannopyranosyl bromide with sodium azide, 2,3,4,6-tetra-O-benzoyl-β-d-mannopyranosyl azide (3) was obtained. Catalytic hydrogenation of 3 produced 2,3,4,6-tetra-O-benzoyl-β-d-mannopyranosylamine (4). Ammonolysis of 4 afforded N-benzoyl-β-d-mannopyranosylamine (7) in good yield (60%) and a mixture of d-mannose and d-mannopyranosylamine (34%). No other compound was characterized. This result shows that, in O-acylated glycosylamines, O→N acyl migration is stereospecific and takes place when there is a cis relation between the O-acyl group at O-2 and the amino group at C-1. © 1973.
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Citas:
---------- APA ----------
(1973)
. Stereospecificity of the O→N acyl migration in 2,3,4,6-tetra-O-benzoyl-β-D-mannopyranosylamine. Carbohydrate Research, 26(2), 357-363.
http://dx.doi.org/10.1016/S0008-6215(00)84523-1---------- CHICAGO ----------
Sproviero, J.F.
"Stereospecificity of the O→N acyl migration in 2,3,4,6-tetra-O-benzoyl-β-D-mannopyranosylamine"
. Carbohydrate Research 26, no. 2
(1973) : 357-363.
http://dx.doi.org/10.1016/S0008-6215(00)84523-1---------- MLA ----------
Sproviero, J.F.
"Stereospecificity of the O→N acyl migration in 2,3,4,6-tetra-O-benzoyl-β-D-mannopyranosylamine"
. Carbohydrate Research, vol. 26, no. 2, 1973, pp. 357-363.
http://dx.doi.org/10.1016/S0008-6215(00)84523-1---------- VANCOUVER ----------
Sproviero, J.F. Stereospecificity of the O→N acyl migration in 2,3,4,6-tetra-O-benzoyl-β-D-mannopyranosylamine. Carbohydr. Res. 1973;26(2):357-363.
http://dx.doi.org/10.1016/S0008-6215(00)84523-1