REASSIGNMENT OF RELATIVE STEREOCHEMISTRY AT C-7 AND C-8 IN ARYLCOUMARAN NEOLIGNANS

Authors
LI SM ILIEFSKI T LUNDQUIST K WALLIS AFA
Citation
Sm. Li et al., REASSIGNMENT OF RELATIVE STEREOCHEMISTRY AT C-7 AND C-8 IN ARYLCOUMARAN NEOLIGNANS, Phytochemistry, 46(5), 1997, pp. 929-934
Citations number
44
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
46
Issue
5
Year of publication
1997
Pages
929 - 934
Database
ISI
SICI code
0031-9422(1997)46:5<929:RORSAC>2.0.ZU;2-T
Abstract
H-1 NMR spectral characteristics of synthetic trans and cia arylcoumar ans and their acetates which are related to 8-5' neolignans are given. This information is used to reassign structures to neolignans reporte d in nine papers, from the cia to the trans 7-aryl-8-hydroxymethyl con figurations, and to neolignans in six papers in which no assignments w ere made. Thus far, there is no evidence for the occurrence of 8-5' ne olignans with a cis configuration in nature. (C) 1997 Elsevier Science Ltd.