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Formation of 5-oxoindeno[1,2-b]pyran derivatives in cyclization of 1,5-diketones of the indian-1,3-dione series

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Indeno[1,2-b]pyrans, including 2-methylene and 2-acetoxy derivatives of 3-ethoxy-carbonyl-4-phenyl-5-oxo-3,4-dihydroindeno[1,2-b]pyran, are formed in the cyclization of 4-(indan-1′,3′-dion-2′-yl)-4-phenyl-2-butanone and its 3-ethoxycarbonyl derivative in acetic anhydride in the presence of sulfuric acid.

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Authors and Affiliations

  1. Institute of Organic Synthesis, Academy of Sciences of the Latvian SSR, 226006, Riga

    V. K. Lusis, É. É. Liepin'sh, D. Kh. Mutsenietse & G. Ya. Dubur

Authors
  1. V. K. Lusis
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  2. É. É. Liepin'sh
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  3. D. Kh. Mutsenietse
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  4. G. Ya. Dubur
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Additional information

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 178–183, February, 1988.

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Lusis, V.K., Liepin'sh, É.É., Mutsenietse, D.K. et al. Formation of 5-oxoindeno[1,2-b]pyran derivatives in cyclization of 1,5-diketones of the indian-1,3-dione series. Chem Heterocycl Compd 24, 145–150 (1988). https://doi.org/10.1007/BF00473321

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  • DOI: https://doi.org/10.1007/BF00473321

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