CATALYTIC AROMATIC BORYLATION VIA IN SITU-GENERATED BORENIUM SPECIES

We have developed a catalytic direct borylation of arenes via in situ-generated borenium species. The choice of appropriate Lewis base was crucial to achieve the catalytic system. Electron-rich arenes were borylated in a regioselective manner. This paper is dedicated to Prof. Masakatsu Shibasaki on the occasion of his 70th birthday and for his outstanding achievement in asymmetric cooperative catalysis.