Long-range two-dimensional H-1-Si-29 heteronclear shift correlation using gradients. Application to tetra-TMS-alpha-O-methyl-D-glucopyranose and tetra-TES-alpha-O-methyl-D-glucopyranose

Authors
Provera, S Davalli, S Raza, GH Contini, S Marchioro, C
Citation
S. Provera et al., Long-range two-dimensional H-1-Si-29 heteronclear shift correlation using gradients. Application to tetra-TMS-alpha-O-methyl-D-glucopyranose and tetra-TES-alpha-O-methyl-D-glucopyranose, MAGN RES CH, 39(1), 2001, pp. 38-42
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
MAGNETIC RESONANCE IN CHEMISTRY
ISSN journal
07491581 → ACNP
Volume
39
Issue
1
Year of publication
2001
Pages
38 - 42
Database
ISI
SICI code
0749-1581(200101)39:1<38:LTHHSC>2.0.ZU;2-6
Abstract
The gradient-enhanced H-1,Si-29 HMQC experiment was applied to tetra-TMS-al pha -O-methyl-D-glucopyranose and tetra-TES-alpha -O-methyl-D-glucopyranose as test samples. All the expected (2)J(H-1, Si-29) and (3)J(H-1, Si-29) cr oss peaks were observed, allowing the full Si-29 NMR assignment. An analysi s of the trend of 29Si chemical shifts depending on the position of the sil ylating group in the sugar ring and on the different hindrances of TMS and TES groups is also reported. Copyright (C) 2001 John Wiley & Sons, Ltd.