摘要：

Blocking the way: Substitution at the 2‐position in pyridines and other N‐heterocycles blocks N‐coordination to an Ir center. This steric hindrance provides a substrate‐design criterion that allows the Ir‐catalyzed borylation of C?H bonds, which can be followed by Suzuki–Miyaura cross‐coupling in a one‐pot reaction (see scheme; B2pin2=bis(pinacolato‐O,O′)diboron, dtbpy=4,4′‐tBu2‐2,2′‐bipyridine).

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