POSITIONAL ASSIGNMENTS OF A SUBSTITUENT GROUP OF 3-SUBSTITUTED JUGLONES BY THE OFF-RESONANCE C-13 NMR-SPECTRA

Authors
TANOUE Y TERADA A SAKATA K HASHIMOTO M MORISHITA S HAMADA M KAI N NAGAI T
Citation
Y. Tanoue et al., POSITIONAL ASSIGNMENTS OF A SUBSTITUENT GROUP OF 3-SUBSTITUTED JUGLONES BY THE OFF-RESONANCE C-13 NMR-SPECTRA, Bulletin of the Chemical Society of Japan, 67(10), 1994, pp. 2886-2887
Citations number
10
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
67
Issue
10
Year of publication
1994
Pages
2886 - 2887
Database
ISI
SICI code
0009-2673(1994)67:10<2886:PAOASG>2.0.ZU;2-T
Abstract
Taking into account the fact that the long-range C-13-H-1 coupling con stant 3J(CH) is greater than 2J(CH), positional assignments of a subst ituent group of 3-substituted juglones were easily accomplished by off -resonance C-13 NMR spectra using a 60-MHz instrument for H-1. This me thod was applicable to a structural determination of naphthazarin deri vatives.