Table 1 Reaction optimizations^a.


Entry	Variation from std. reaction conditions	3 yield (%)^b
1	None	89^c
2	c-GaN (30 mol%), Xe lamp, no PhH	12
3	c-GaN (30 mol%), Xe lamp	23
4	c-GaN (30 mol%), Kessil 370 nm	35
5	c-GaN (30 mol%)	43
6	1 wt% Rh₂O₃/GaN (30 mol%)	85
7	Under the air atmosphere	24
8	No benzophenone	22
9	No GaN	12
10	In the dark, 35 °C	n.d.

c-GaN commercial GaN powder.
^aAll reactions were conducted at a 0.1 mmol scale of 1 under an inert atmosphere unless otherwise noted.
^bYields obtained by ¹H NMR with dibromomethane as internal standard.
^cIsolated yield.

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