Abstract
The mercuric sulfate-catalyzed acidic hydration of allenylacetylenic alcohols leads to 6-methyl-2,3-dihydro-4-pyranones — products of cyclization of unsaturated β-diketones. In the case of 1-(3,4-pentadien-1-ynyl)cyclohexanol 2-(1-cyclohexenyl)-5-methylfuran is formed in addition to the corresponding dihydropyranone.
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Communication 113 from the series “Reactions of unsaturated compounds.” See [1] for communication 112.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 619–622, May, 1984.
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Khrimyan, A.P., Karapetyan, A.V. & Badanyan, S.O. Hydration of allenylacetylenic alcohols — New route to 6-methyl-2,3-dihydro-4-pyranones. Chem Heterocycl Compd 20, 495–498 (1984). https://doi.org/10.1007/BF00514299
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DOI: https://doi.org/10.1007/BF00514299