Substrate scope using Cu@pNIPAM-VP.

Entry	Product	Cu(i)@pNIPAM-VPa		Cu(ii)@pNIPAM-VPb		Entry	Product	Cu(i)@pNIPAM-VPa		Cu(ii)@pNIPAM-VPb
		Time (h)	Isolated yield (%)	Time (h)	Isolated yield (%)			Time (h)	Isolated yield (%)	Time (h)	Isolated yield (%)
1		2	94	2	91	10		6	88	8	75
2		3	92	2	93	11d		4	62	4	88
3		2	92	2	92	12		6	89	6	88
4		4	93	4	92	13d		6	70	6	73
5c		6	75	6	71	14		6	92	6	90
6		4	75	4	90	15		6	90	6	92
7		2	89	2	90	16		6	91	6	93
8		4	84	4	90	17		6	92	6	90
9d		8	72	8	74

^aReaction conditions: aryl bromide (1.0 mmol), aryl acetylene (1.0 mmol), sodium azide (1.0 mmol), Cu(i)@pNIPAM-VP (5 mol% of Cu), H₂O (2 mL).

^bCu(ii)@pNIPAM-VP (1.0 mol% of Cu).

^c4-Aminobenzyl azide was prepared by the reaction of 4-aminobenzyl bromide with sodium azide for 2 hours; phenyl acetylene was subsequently added to the reaction mixture.

^dBenzylbromide (1.2 mmol).