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Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
Published on: March 9, 2021
Dibenzylbutane and aryltetralone lignans from seeds of Virola sebifera
Kênnia R Rezende1, Massuo J Kato
1Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CEP 05508-900, SP, São Paulo, Brazil.
Phytochemistry
|October 16, 2002
Abstract:
Two lignans rel-(8R, 8'R)-3,4:3',4'-bis-(methylenedioxy)-7.7'-dioxo-lignan and (7'R,8'S,8S)-2'-hydroxy-3,4:4',5'-bis-(methylenedioxy)-7-oxo-2,7'-cyclolignan were isolated from seeds of Virola sebifera. The cyclolignan showed two atropisomers as determined by 1H NMR spectroscopy at low temperature.
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