catalyst: (Ir(C8H12)Cl)2/(NC5H4C(CH3)3-4)2 in tetrahydrofuran react. indole deriv. with boron compds. in THF in the presence of Ir complex and 4,4'-di-tert-butylbipyridine at 80°C; workup with 3 M aq. sodium acetate;