STRUCTURE ASSIGNMENT OF NATURAL QUINIC ACID-DERIVATIVES USING PROTON NUCLEAR-MAGNETIC-RESONANCE TECHNIQUES

Authors
PAULI GF POETSCH F NAHRSTEDT A
Citation
Gf. Pauli et al., STRUCTURE ASSIGNMENT OF NATURAL QUINIC ACID-DERIVATIVES USING PROTON NUCLEAR-MAGNETIC-RESONANCE TECHNIQUES, Phytochemical analysis, 9(4), 1998, pp. 177-185
Citations number
23
Categorie Soggetti
Biology,"Chemistry Analytical","Plant Sciences
Journal title
Phytochemical analysis → ACNP
ISSN journal
09580344
Volume
9
Issue
4
Year of publication
1998
Pages
177 - 185
Database
ISI
SICI code
0958-0344(1998)9:4<177:SAONQA>2.0.ZU;2-A
Abstract
The proton nuclear magnetic resonances (NMR) of seven naturally occurr ing hydroxycinnamoylquinic acids were analysed in order to obtain full sets of shift values and spin-spin coupling constants, as well as inf ormation about solution conformation. Based on this study, specific ru les for proton substituent chemical shifts are derived, allowing the d istinction of position isomers and single caffeoyl subunits in oligosu bstituted quinic acids. (C) 1998 John Wiley & Sons, Ltd.