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This domino transformation proceeds at room temperature in the presence of methanesulfonic acid as the sole promoter. The method allows for the construction of a broad scope of polysubstituted furo[2,3-b]carbazoles in up to 92% yield. The photophysical properties of the polycyclic products were determined to assess their potential as fluorophores.<\/jats:p>","DOI":"10.1021\/acs.joc.6c01620","type":"journal-article","created":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T11:01:30Z","timestamp":1789124490000},"page":"13037-13049","source":"Crossref","is-referenced-by-count":0,"title":["Oxidative Benzannulation\nof Indoles with 3-Alkynyl-4-pyrones\nfor the Synthesis of Furo[2,3-\n                    <i>b<\/i>\n                    ]carbazoles"],"prefix":"10.1021","volume":"91","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2925-7104","authenticated-orcid":true,"given":"Vladislav V.","family":"Fedin","sequence":"first","affiliation":[{"name":"Ural Federal University , , 51 Lenina Avenue , ,","place":["Ekaterinburg, Russian Federation, 620000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Egor O.","family":"Sofin","sequence":"additional","affiliation":[{"name":"Ural Federal University , , 51 Lenina Avenue , ,","place":["Ekaterinburg, Russian Federation, 620000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey A.","family":"Usachev","sequence":"additional","affiliation":[{"name":"Ural Federal University , , 51 Lenina Avenue , ,","place":["Ekaterinburg, Russian Federation, 620000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6659-9832","authenticated-orcid":true,"given":"Dmitrii L.","family":"Obydennov","sequence":"additional","affiliation":[{"name":"Ural Federal University , , 51 Lenina Avenue , ,","place":["Ekaterinburg, Russian Federation, 620000"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8956-0973","authenticated-orcid":true,"given":"Vyacheslav Y.","family":"Sosnovskikh","sequence":"additional","affiliation":[{"name":"Ural Federal University , , 51 Lenina Avenue , ,","place":["Ekaterinburg, Russian Federation, 620000"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,11]]},"reference":[{"issue":"1","key":"2026092509095190000_cit1","doi-asserted-by":"publisher","first-page":"90","DOI":"10.1080\/15685551.2023.2194174","article-title":"Mini-review on the novel synthesis\nand potential applications of carbazole and its derivatives","volume":"26","author":"Xu","year":"2023","journal-title":"Des. 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