The infrared spectra of N-substituted glycosylamines
作者:G. P. Ellis
DOI:10.1039/j29660000572
日期:——
The infraredspectra of a number of N-substituted glycosylamines have been examined over the ranges 1800–1500 and 960–700 cm.–1; the spectra indicate the presence of a pyranose ring. Comparison of the spectra of the two isomeric N-phenyl-D-ribosylamines with those of methyl β-D-ribopyranoside and methyl and benzyl β-D-ribofuranoside, suggests that the ribosylamines are pyranose but a furanose structure
Rate constants for the mutarotation reaction of N-(p-chlorophenyl)-beta-D-glucopyranosylamine (NGlc) in methanol have been determined in the presence of transition metal chlorides (MCl(2)), at 25 degrees C. The activity of the metal ions catalyzing the alpha-pyranoside<-->beta-pyranoside interconversion has been found to increase in the following series: Mn(2+)