Iridium-catalysed borylation of sterically hindered C(sp<sup>3</sup>)–H bonds: remarkable rate acceleration by a catalytic amount of potassium tert-butoxide
The C(sp(3))-H bonds located on the methyl groups of an isopropyl group participate in iridium-catalysed C-H borylation with bis(pinacolato)diboron via a significant rate acceleration caused by a catalytic amount of t-BuOK.