Table 2. Au-catalyzed reactions of 1e–s ^a .

	1	R1	Ar	Time (h)	2	Yield b (%)
1	1e	p-MeOC6H4	Ph	8	2e	92
2	1f	p-ClC6H4	Ph	8	2f	94
3	1g	p-F3CC6H4	Ph	20	2g	86
4	1h	1-Cyclohexenyl	Ph	8	2h	51
5	1i	Cy	Ph	12	2i	81
6	1j	iPr	Ph	15	2j	53
7	1k	1-Phenylpentyl	Ph	8	2k	61
8	1l	nPr	Ph	24	—	<1
9	1m	tBu	Ph	6	—	<1 c
10	1n	H	Ph	24	—	<1 d
11	1o	Ph	p-MeOC6H4	8	2o	65
12	1p	Ph	p-ClC6H4	8	2p	92
13	1q	Ph	p-F3CC6H4	8	2q	91
14	1r	4-MeOC6H4	p-F3CC6H4	12	2r	93
15	1s	Ph	1-Naphthyl	8	2s	93

^aReaction of 1 (0.2 mmol) were conducted in the presence of PPh₃AuNTf₂ (0.01 mmol) in DCE (0.4 mL) at 50 °C.

^bIsolated yield.

^c76% of 1m was recovered.

^d28% of 1n was recovered.