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Transformation of 5H,11H-Indolo[3,2-b]carbazole through 5,11-Didehydroindolo[3,2-b]carbazole

✍ Scribed by L. N. Yudina; M. N. Preobrazhenskaya; A. M. Korolev

Book ID
111527333
Publisher
Springer US
Year
2000
Tongue
English
Weight
66 KB
Volume
36
Category
Article
ISSN
0009-3122

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A synthesis of 5-hydroxymethyl-ll-methyl-6H-pyrido[4,3-b]carbazole and the correspondinq 5-formvl derivative. 17-oxoellioticine.3 is described, the key feature of which-is the use of the KrohnkeI aldehyde synthesis to effect the debenzylation of a p-nitrobenzyl-pyridinium salt under mild conditions.