Table 2 Dual Ni-photocatalytic C-N coupling^a.

^aReaction conditions: photocatalyst (12 mg), 4-bromobenzonitrile (9.1 mg, 0.05 mmol), pyrrolidine (7.4 μL, 0.09 mmol), NiBr₂·glyme (0.8 mg, 0.0025 mmol), DABCO (12.3 mg, 0.11 mmol), N,N-dimethylacetamide (1 mL), 48 h. Condition was adapted from Ref. ². Yield and conversion were determined by GC-MS.
^b1,10-phenanthroline (0.0025 mmol) was added as a ligand.
^cWithout NiBr₂·glyme.
^dWithout photocatalyst.
^eData obtained after using PHT for three consecutive rounds.

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