Total assignments of  1 H and  13 C NMR spectra of biflorin and bis‐biflorin from  Capraria biflora | Zendy

Fonseca Aluisio M. | Zendy; Pessoa Otília D. L. | Zendy; Silveira Edilberto R. | Zendy; Monte Francisco J. Q. | Zendy; BrazFilho Raimundo | Zendy; Lemos Telma L. G. | Zendy

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Total assignments of 1 H and 13 C NMR spectra of biflorin and bis‐biflorin from Capraria biflora

Author(s) -

Fonseca Aluisio M.,

Pessoa Otília D. L.,

Silveira Edilberto R.,

Monte Francisco J. Q.,

BrazFilho Raimundo,

Lemos Telma L. G.

Publication year - 2003

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1295

Subject(s) - chemistry , dimer , mass spectrum , nmr spectra database , mass spectrometry , nuclear magnetic resonance spectroscopy , high resolution , stereochemistry , spectral line , organic chemistry , physics , chromatography , remote sensing , astronomy , geology

Bis‐biflorin, a new o ‐naphthoquinone dimer, and biflorin, 6,9‐dimethyl‐3‐(4‐methyl‐3‐pentenyl)naphtho[1,8‐ bc ]‐pyran‐7,8‐dione, were isolated from roots of Capraria biflora , a medicinal plant from northeast Brazil. Structural elucidation was made on the basis of spectral data, mainly by high‐field NMR and high‐resolution mass spectrometry. Copyright © 2003 John Wiley & Sons, Ltd.

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