Further Nuclear Magnetic Resonance Studies of Flavone-Reference-Cited by-同舟云学术

Further Nuclear Magnetic Resonance Studies of Flavone

Published:1994 Issue:2 Volume:12 Page:85-89
ISSN:0712-4813
Container-title:Spectroscopy
language:en
Short-container-title:Spectroscopy

Author:

García-Martínez Cirilo¹,Morales-Rios Martha S.¹,Joseph-Nathan Pedro¹

Affiliation:

1. Departamento de Quimíca del Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Apartado Postal 14-740, México, D. F., 07000, Mexico

Abstract

The incorporation of 92.7% of13C at the carbonyl group of flavone allowed to measure two- and three-bond carbon-carbon coupling constants which range from 1.4 to 3.5 Hz, and to measure two-, three- and four-bond carbon-hydrogen coupling constants which range from 0.3 to 3.8 Hz. A mixture of unlabelled flavone1with its 4-13C labelled analogue2further allowed to measure one-bond induced isotope shifts of -15.5 and -16.2 ppb for C-3 and C-4a, respectively, and a three bond induced isotope shift of +3.7 ppb for C-I'.

Funder

Consejo Nacional de Ciencia y Tecnología

Publisher

Hindawi Limited

Subject

Spectroscopy

Link

http://downloads.hindawi.com/journals/jspec/1994/297058.pdf

Cited by 4 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Conformational evaluation and detailed 1H and 13C NMR assignments of flavoxate, a urinary tract antispasmodic agent;Journal of Pharmaceutical and Biomedical Analysis;2006-05

2. A new C-Glycosylflavone from Encyclia michuacana;Journal of Molecular Structure;2006-02

3. Spectroscopic Techniques Applied to Flavonoids;Flavonoids;2005-12-09

4. Mass spectral studies of methoxynaphthoflavones;Rapid Communications in Mass Spectrometry;1999-11-15