ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Dimeric Naphthoquinones, IV1). - Synthesis of Biramentaceone, Mamegakinone and RotundiquinoneMamegakinone (8a), biramentaceone (12a), 3,3′-bijuglone (8b), 2,2′-bijuglone (12b) and their methyl ethers were prepared by oxidative coupling of substituted 4-methoxy-1-naphthols; indigoids like 24 are intermediates. Cooxidation of the isomeric dimethoxy-1-naphthols 4a, 9a and 4b, 9b yields rotundiquinone dimethyl ether (29c) and 2,3-bijuglone dimethyl ether (29d) in the same manner. - Characters and spectra of the compounds are discussed.
Notes:
Mamegakinon (8a), Biramentaceon (12a), 3,3′-Bijuglon (8b) und 2,2′-Bijuglon (12b) sowie deren Methylether wurden durch Phenoloxidation geeignet substituierter 4-Methoxy-1-naphthole über indigoide Zwischenstufen vom Typ 24 synthetisiert. Die Cooxidation der isomeren Dimethoxy-1-naphthole 4a, 9a bzw. 4b, 9b lieferte analog Rotundichinon-dimethylether (29c) und 2,3-Bijuglon-dimethylether (29d). - Eigenschaften und Spektren der Verbindungen werden diskutiert.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198019800815
