Rhodium-catalyzed borylative cyclization of 2-alkynylaryl isocyanates with bis(pinacolato)diboron.
2-alkynylaryl isocyanates reacted with bis(pinacolato)diboron in the presence of a cationic rhodium(I) catalyst to produce borylated 3-alkylideneoxindoles stereoselectively. The carbon-boron linkage formed was further transformed via reactions such as a cross-coupling and a halogenation reaction.
Miura
Tomoya
T
Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Japan.
Takahashi
Yusuke
Y
Murakami
Masahiro
M