Abstract
A general method for the preparation of alkynyl derivatives of benzofuran, including α-ethynylbenzofuran, consists in the cyclization of o-mono-and dialkynylphenols under the conditions of the Mannich and Cadiot-Chodkiewicz reactions.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1457–1460, November, 1972.
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Bardamova, M.I., Myasnikova, R.N. & Kotlyarevskii, I.L. Alkynyl derivatives of benzofuran. Chem Heterocycl Compd 8, 1314–1317 (1972). https://doi.org/10.1007/BF00471860
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DOI: https://doi.org/10.1007/BF00471860