Revised structures of phenylphenalene derivatives from Eichhornia crassipes

Tetrahedron Letters

Volumn 49, Issue 20, 2008, Pages 3268-3272

  DellaGreca, Marina ^a   Previtera, Lucio ^a   Zarrelli, Armando ^a  

^a UNIVERSITY OF NAPLES FEDERICO II   (Italy)

Author keywords

Dimeric phenylphenalenes; Eichhornia crassipes; Phenylphenalenes; Spectroscopic analysis

Indexed keywords

PHENALENE DERIVATIVE; PHENYLPHENALENE DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL ANALYSIS; CHEMICAL STRUCTURE; EICHORNIA CRASSIPES; HYACINTHUS; MATRIX ASSISTED LASER DESORPTION IONIZATION TIME OF FLIGHT MASS SPECTROMETRY; NUCLEAR MAGNETIC RESONANCE;

EICHHORNIA CRASSIPES;

EID: 41949091548     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2008.03.072     Document Type: Article

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17. 13C NMR: δ 159.1 (C-4′), 151.6 (C-4), 150.8 (C-8), 146.1 (C-9), 137.8 (C-1′), 128.8 (C-2′/C-6′), 128.1 (C-9a), 126.7 (C-9b), 126.2 (C-6a), 125.3 (C-6), 121.2 (C-3a), 113.9 (C-3′/C-5′), 111.9 (C-5), 105.5 (C-7), 60.5 (C-9-OMe), 56.3 (C-4-OMe), 55.4 (C-8-OMe), 55.2 (C-4′-OMe), 38.3 (C-1), 29.1 (C-2), and 18.1 (C-3).
18. 13C NMR: δ 157.7 (C-4′), 152.3 (C-4), 149.1 (C-8), 148.7 (C-9), 137.9 (C-1′), 128.9 (C-2′/C-6′), 128.4 (C-9b), 126.1 (C-9a), 124.5 (C-6a), 124.6 (C-6), 120.6 (C-3a and C-7), 113.5 (C-3′/C-5′), 112.0 (C-5), 60.5 and 60.6 (C-8-OMe and C-9-OMe), 56.0 (C-4-OMe), 55.2 (C-4′-OMe), 37.9 (C-1), 29.7 (C-2), and 18.2 (C-3).