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- W2949276436 abstract "Carbazolequinone alkaloids, murrayaquinone-A (1a), and pyrayaquinone-A (2) and -B (3), as well as pyrano[3, 2-b]carbazolequinone 5, an isomer of 2 and 3, were prepared conveniently by the palladium-assisted intramolecular ring closure of the corresponding 2-arylamino-methyl-1, 4-benzoquinones 9a and 9i-k. A series of their analogues, 6-, 7-, and 8-substituted 3-methylcarbazole-1, 4-quinone derivatives 1b-g and 2-methylcarbazolequinones 6a-g corresponding to 1a-g, was also prepared in the same manner. Comparative analysis of the carbon-13 nuclear magnetic resonance spectra was found to provide useful information for the structural assignment of either 2- or 3-methylcarbazolequinones." @default.
- W2949276436 created "2019-06-27" @default.
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- W2949276436 date "2010-08-22" @default.
- W2949276436 modified "2023-09-26" @default.
- W2949276436 title "ChemInform Abstract: Synthesis of Some Carbazolequinone Alkaloids and Their Analogues. Facile Palladium-Assisted Intramolecular Ring Closure of Arylamino-1,4- benzoquinones to Carbazole-1,4-quinones." @default.
- W2949276436 cites W2006197114 @default.
- W2949276436 doi "https://doi.org/10.1002/chin.199141247" @default.
- W2949276436 hasPublicationYear "2010" @default.
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