Selective Functionalization of Achmatowicz Rearrangement Products by Reactions with Potassium Organotrifluoroborates under Transition-Metal-Free Conditions was written by Roscales, Silvia;Ortega, Victor;Csaky, Aurelio G.. And the article was included in Journal of Organic Chemistry in 2018.Name: Potassium benzofuran-2-yltrifluoroborate This article mentions the following:
The repertoire of synthetic transformations of the products of the Achmatowicz rearrangement has been expanded by exploring their reactivity with potassium organotrifluoroborates in the absence of transition metals. Depending on the reaction conditions and the substitution pattern of the starting material, the reaction may lead to the stereoselective synthesis of dihydropyranones (2,6-trans), tetrahydropyranones (2,3-cis-2,6-cis) or functionalized 1,4-dicarbonyl compounds The method has also been adapted for the one-pot synthesis of functionalized pyrroles. In the experiment, the researchers used many compounds, for example, Potassium benzofuran-2-yltrifluoroborate (cas: 929626-27-7Name: Potassium benzofuran-2-yltrifluoroborate).
Potassium benzofuran-2-yltrifluoroborate (cas: 929626-27-7) belongs to benzofurans derivatives. Benzofuran is a core structural unit found in many naturally occurring compounds with multidirectional biological activities. They are also prone to polymerisation in the presence of concentrated mineral acids and Lewis acids.Name: Potassium benzofuran-2-yltrifluoroborate
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem