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Digitale Medien

Some Synthetic Studies Related to Perylenequinones (1993)

Zhao, Chen ; Zhang, Xu-Sheng ; Zhang, Pang

Weinheim : Wiley-Blackwell

Liebigs Annalen 1993 (1993), S. 35-41

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ISSN: 0170-2041

Schlagwort(e): Fungus pigments ; Perylenequinones, synthesis of ; Selenium dioxide oxidation ; Ullmann coupling ; Double coupling of 1,2-naphthalenediols ; Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Two closely related routes to dimethyl 3,10-dihydro-2,11-dihydroxy-4,6,7,9-tetramethoxy-3,10-dioxo-1,12-perylenediacetate (10), one involving Ullmann phenol coupling and the other by double oxidative coupling are described. Regioselective demethylation of 10 followed by methylation or vice versa yields dimethyl 3,10-dihydro-4,9-dihydroxy-2,6,7,11-tetramethoxy-3,10-dioxo-1,12-perylenediacetate (22) which, except for its side chains, structurally resembles some of the natural perylenequinones.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jlac.199319930107

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