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Chem."],"abstract":"<jats:p>\n                    Herein, we demonstrated a PTSA-catalyzed facile and efficient synthesis of tricyclic benzo[\n                    <jats:italic>f<\/jats:italic>\n                    ]indole and naphtho[2,3-\n                    <jats:italic>b<\/jats:italic>\n                    ]furan derivatives\n                    <jats:italic>via<\/jats:italic>\n                    a cascade isomerization\/cyclisation\/aromatisation reaction in good yields.\n                  <\/jats:p>","DOI":"10.1039\/d6ob00462h","type":"journal-article","created":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T10:22:56Z","timestamp":1781864576000},"page":"5556-5567","update-policy":"https:\/\/doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Br\u00f8nsted acid-catalyzed synthesis of benzo[\n                    <i>f<\/i>\n                    ]indole and naphtho[2,3-\n                    <i>b<\/i>\n                    ]furan derivatives\n                    <i>via<\/i>\n                    an intramolecular cascade isomerization\/cyclization\/aromatization"],"prefix":"10.1039","volume":"24","author":[{"given":"Raj Kamal","family":"Sahoo","sequence":"first","affiliation":[{"name":"Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sourav","family":"Ghosh","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kush","family":"Mandal","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asadujjaman","family":"Nur","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1583-5129","authenticated-orcid":false,"given":"Umasish","family":"Jana","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"292","published-online":{"date-parts":[[2026]]},"reference":[{"key":"D6OB00462H\/cit1a\/1","volume-title":"Heterocyclic Chemistry in Drug Discovery","author":"Li","year":"2013","unstructured":"J. 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