Table 1.

Control Experiments^a

entry	solvents	oxygen	2a′	2a″	1a′
1b	CH2Cl2/pentane (1:1 v/v)	atm O2	72	5
2	CH2Cl2/pentane (1:1 v/v)				40
3	toluene	atm O2	45
4	toluene
5c	CH2Cl2/pentane (1:1 v/v)	atm O2

^aReaction conditions: 1a (0.05 mmol), CsPbBr₃ NCs (1 mg), with or without atm O₂, 500 μL of solvents, irradiation with a blue 456 nm LED at room temperature for 24 h.

^bWith SiO₂ (5 mg).

^cNo light.