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Journal articles
Palladium-Catalyzed Regioselective Direct Arylation of Benzofurazans at the C-4 Position
Abstract : The palladium-catalyzed direct arylation of benzofurazans with aryl bromides to access 4-ary-lbenzofurazans proceeds in moderate-to-high yields using phosphine-free palladium acetate as the catalyst and potassium acetate as an inexpensive base. A wide variety of (hetero) aryl bromides, including bromopyridine and bromothiophene derivatives has been successfully employed. Palladium-catalyzed one-pot C-4, C-7-diarylation of benzofurazan was also achieved using a larger amount of aryl bromide. Moreover, the derivatization of 4-arylbenzofurazans into 4-arylquinaxolines is also reported.
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01578528
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Monday, September 11, 2017 - 3:00:12 PM
Last modification on : Friday, July 2, 2021 - 1:01:45 PM
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Monday, September 11, 2017 - 3:00:12 PM
Last modification on : Friday, July 2, 2021 - 1:01:45 PM