Abstract
4-Acyl-1,5-diphenyltetrahydropyrrole-2,3-diones react with diphenyldiazomethane to give O-alkylation products, which upon heating undergo [1,5]-sigmatropic suprasurface rearrangement to form 4-[methyl- and 4-[-aryl(diphenylmethoxy)-methylene]-1,5-diphenyltetrahydropyrrole-2,3-diones.
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Yu. S. Andreichikov, V. L. Gein, O. I. Ivanenko, and A. N. Maslivets, Zh. Org. Khim., 22, 2208 (1986).
Yu. S. Andreichikov, V. L. Gein, and I. N. Anikina, Khim. Geterotsikl. Soedin., No. 10, 1428 (1985).
Yu. S. Andreichikov, V. L. Gein, and I. N. Anikina, Zh. Org. Khim., 22, 1749 (1986).
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See [1] for Communication 1.
Translated from Khimiya Geterotsiklicheskikh Soedinenii. No. 5, pp. 625–628, May, 1987.
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Andreichikov, Y.S., Gein, V.L. & Anikina, I.N. Five-membered 2,3-dioxo heterocycles. 2. Synthesis and [1,5]-sigmatropic rearrangement of 4-acyl-3-diphenylmethoxy-1,5-diphenyl-2,5-dihydropyrrol-2-ones. Chem Heterocycl Compd 23, 517–519 (1987). https://doi.org/10.1007/BF00476378
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DOI: https://doi.org/10.1007/BF00476378