Table 1. Optimization of amidation reaction conditions^a.

Entry	Deviation from standard conditions	Yield of 3a (%)
1	None	87
2	PPTA-RSS instead of the PPTA-RSS system	34
3	EY instead of the PPTA-RSS system	16
4	RhB instead of the PPTA-RSS system	28
5	SR101 instead of the PPTA-RSS system	Trace
6	Cy5 instead of the PPTA-RSS system	Trace
7	PPTA-RSS + EY instead of the PPTA-RSS system	43
8	PPTA-RSS + EY + RhB instead of the PPTA-RSS system	48
9	PPTA-RSS + EY + RhB + SR101 instead of the PPTA-RSS system	56
10	N2 instead of air	ND
11	O2 instead of air	88
12	365 nm instead of 395 nm	89
13	425 nm instead of 395 nm	78
14	No light	ND
15	No PC	ND

^aStandard conditions: benzaldehyde (0.3 mmol), pyrrolidine (0.45 mmol), PPTA-RSS + EY + RhB + SR101 + Cy5 (1 mol%), H₂O (2.0 mL), irradiated with a 395 nm LED at room temperature for 24 h. Yields were determined by isolated yield. PC, photocatalyst; RT, room temperature; ND, not detected.