Yu. S. Rozhkova, T. Vshivkova, V. V. Morozov
Nov 1, 2017
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Journal
Chemistry of Heterocyclic Compounds
Abstract
A reaction of methoxybenzenes or phenols with isobutyric aldehyde and 2-amino-5-nitro- or 2-amino-4-chlorobenzonitriles in concentrated H2SO4 medium was used for the preparation of new pyrrolo[3,2-l]acridinone derivatives. Analogous reactions using 2-amino-3-pyridinecarbonitrile enabled the synthesis of previously unknown benzo[b]pyrrolo[3,2-c][1,8]naphthyridinones.