Palladium(0)-Catalyzed Dearomatization of 2-Nitrobenzofurans through Formal (3+2) Cycloadditions with Vinylcyclopropanes: A Straightforward Access to Cyclopenta[b]benzofurans was written by Ling, Johanne;Laugeois, Maxime;Michelet, Veronique;Ratovelomanana-Vidal, Virginie;Vitale, Maxime R.. And the article was included in Synlett in 2018.Product Details of 33094-66-5 This article mentions the following:
The design and synthesis of a series of novel cyclopenta[b]benzofuran derivatives e.g., I via palladium-catalyzed dearomatization of various 2-nitrobenzofurans such as 2-nitrobenzofuran, 5-chloro-2-nitrobenzofuran, 7-methoxy-2-nitrobenzofuran, etc. efficiently undergo a dearomative (3+2) cycloaddition with vinylcyclopropanes such as 2-vinylcyclopropane-1,1-dicarbonitrile, diisopropyl 2-vinylcyclopropane-1,1-dicarboxylate, 5,7-dimethyl-1-vinyl-5,7-diaza-spiro[2.5]octane-4,6,8-trione, etc. has been reported. In the experiment, the researchers used many compounds, for example, 2-Nitrobenzofuran (cas: 33094-66-5Product Details of 33094-66-5).
2-Nitrobenzofuran (cas: 33094-66-5) belongs to benzofurans derivatives. Benzofuran is a core structural unit found in many naturally occurring compounds with multidirectional biological activities. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.Product Details of 33094-66-5
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem