P. A. Volkov, K. O. Khrapova, E. M. Vyi, A. A. Telezhkin, I. A. Bidusenko, A. I. Albanov, A. V. Shchepochkin, “Elemental sulfur as a trigger and reagent in cyclization of γ-amino acetylenic ketones to 1,2-dihydro-3H-pyrrole-3-thiones”, Mendeleev Commun., 35:1 (2025), 102

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Mendeleev Communications, 2025, Volume 35, Issue 1, Pages 102–104
DOI: https://doi.org/10.71267/mencom.7582 (Mi mendc1340)

Communications

Elemental sulfur as a trigger and reagent in cyclization of γ-amino acetylenic ketones to 1,2-dihydro-3H-pyrrole-3-thiones

P. A. Volkov^a, K. O. Khrapova^a, E. M. Vyi^a, A. A. Telezhkin^a, I. A. Bidusenko^a, A. I. Albanov^a, A. V. Shchepochkin^b

^a A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 664033 Irkutsk, Russian Federation
^b I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 620219 Ekaterinburg, Russian Federation

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DOI: https://doi.org/10.71267/mencom.7582

Graphic abstract: Elemental sulfur as a trigger and reagent in cyclization of γ-amino acetylenic ketones to 1,2-dihydro-3<em>H</em>-pyrrole-3-thiones

Abstract: An original and effective synthesis of 1,2-dihydro-3H-pyrrole-3-thiones from available γ-amino acetylenic ketones and elemental sulfur as a trigger and reagent has been developed. The reaction is carried out in the KOH/ethanol system, the yield of the target heterocycles being 46–75%.

Keywords: nucleophilic addition, heterocyclization, amino acetylenic ketones, 1,2-dihydro-3H-pyrrole-3-thiones, elemental sulfur, potassium hydroxide.

Funding agency	Grant number
Ministry of Science and Higher Education of the Russian Federation	121021000199-6

Received: 01.08.2024
Accepted: 12.09.2024

Document Type: Article

Language: English

*Supplementary materials:*
		Supplementary_data_1.pdf	(1.0 Mb)

Citation: P. A. Volkov, K. O. Khrapova, E. M. Vyi, A. A. Telezhkin, I. A. Bidusenko, A. I. Albanov, A. V. Shchepochkin, “Elemental sulfur as a trigger and reagent in cyclization of γ-amino acetylenic ketones to 1,2-dihydro-3H-pyrrole-3-thiones”, Mendeleev Commun., 35:1 (2025), 102–104

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Citing articles in Google Scholar: Russian citations, English citations
Related articles in Google Scholar: Russian articles, English articles

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References:	18
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