Ester-directed regioselective borylation of heteroarenes catalyzed by a silica-supported iridium complex.
The ester-directed regioselective borylation of arenes catalyzed by a silica-supported monophosphine-Ir complex displayed a significantly broad substrate scope toward heteroaromatic compounds, including thiophene, pyrrole, furan, benzothiophene, benzofuran, indole, and carbazole derivatives. The regioselectivity is complementary to the selectivities observed in the heteroarene C-H borylation with the dtbpy-Ir catalyst system.
Kawamorita
Soichiro
S
Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
Ohmiya
Hirohisa
H
Sawamura
Masaya
M