A challenge in the selective functionalization of ubiquitous C-H bonds is to increase the turnover numbers (TONs) for catalytic C-H functionalization reactions, and the selective functionalization of less reactive primary C-H bonds. Here, the authors report iridium porphyrin-catalysed asymmetric carbene insertions into primary N-adjacent C–H bonds, with up to 99% ee and product TON > 1000000.
- Zong-Rui Li
- Kun Zhan
- Chi-Ming Che
