A Catalytic Borylation/Dehalogenation Route to o-Fluoro Arylboronates

作者:Jayasundara Chathurika R K; Unold Jason M; Oppenheimer Jossian*; Smith Milton R III; Maleczka Robert E Jr
来源:Organic Letters, 2014, 16(23): 6072-6075.
DOI:10.1021/ol5028738

摘要

A two-step Ir-catalyzed borylation/Pd-catalyzed dehalogenation sequence allows for the net synthesis of fluoroarenes where the boronic ester is ortho to fluorine. Key elements of this approach include the use of a halogen para to the fluorine to block meta Ir-catalyzed borylation and the chemoselective Pd-catalyzed dehalogenation by KF activated polymethylhydrosiloxane (PMHS).

  • 出版日期2014-12-5