TY  - JOUR
AB  - Glycosidic oxocarbenium ions A1+ were formed by isobutane chemical ionization from methyl 2,3,4,6-tetra-O-methyl-beta-D-mannopyranoside, methyl 2,3,4,6-tetra-O-methyl-beta-D-galactopyranoside and methyl 2,3,4,6-tetra-O-methyl-beta-D-glucopyranoside (the ring -O-being converted into -O+=), and their reaction with ammonia was studied by Fourier transform ion cyclotron resonance spectrometry. Very slow formation (reaction efficiency 0.6-1.4%) of the adduct ion [A1 + NH3]+ was observed as the main process for carefully thermalized ions A1+. Interestingly, the efficiency of the adduct ion formation depends on the sterochemistry of ions A1+.
DA  - 1991
DO  - 10.1002/oms.1210261210
LA  - eng
IS  - 12
M2  - 1085
PY  - 1991
SN  - 0030-493X
SP  - 1085-1088
T2  - Organic Mass Spectrometry
TI  - Fourier transform ion cyclotron resonance study of ion-molecule reactions of [M - OCH 3] + ions of methyl 2,3,4,6-tetra-O-methyl-d-hexopyranosides with ammonia
UR  - https://nbn-resolving.org/urn:nbn:de:0070-pub-17834269
Y2  - 2024-11-25T03:25:54
ER  -