Abstract
8-Aroyl-3,4-dihydro-1Н-pyrrolo[2,1-с][1,4]oxazine-1,6,7-triones reacts with N-ethylaniline with formation of N-phenyl-N-ethylammonium 3′-aroyl-1′-(2-hydroxyethyl)-2,5′-dioxo-1-ethyl-1′,5′-dihydrospiro[indoline-3,2′-pyrrol]-4′-oates, which, at acidification, are converted into 3′-aroyl-4′-hydroxy-1′-(2-hydroxyethyl)-1-ethylspiro[indoline-3,2′-pyrrole]-2,5′(1′H)-diones, the structure of both classes of products was confirmed by X-ray diffraction.
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The work was carried out with financial support from the Ministry of Education and Science of the Russian Federation (project no. FSNF-2023-0004).
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Tretyakov, N.A., Shaginurova, A.I., Dmitriev, M.V. et al. Synthesis of Spiro[indoline-pyrroles] by the Reaction of Pyrrolooxazinetriones with N-Ethylaniline. Russ J Gen Chem 94, 532–538 (2024). https://doi.org/10.1134/S107036322403006X
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DOI: https://doi.org/10.1134/S107036322403006X