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. 2021 Dec 1;122(1):565–788. doi: 10.1021/acs.chemrev.1c00449

Scheme 73. Direct Heteroarylation Leading to Tetrameric N-Annulated PDI Conjugates.

Scheme 73

Reagents and conditions: (a)139 SiliaCat DPP-Pd, PivOH, K2CO3, DMA, 120 °C, 24 h, 70%; (b)140 SiliaCat DPP-Pd, AcOH, Cs2CO3, DMA, 120 °C, 24 h, 70%.