. 2017 Nov 10;2(11):7784–7789. doi: 10.1021/acsomega.7b01422

Table 2. Catalyst-Free Synthesis of Different Disulfide-Functionalized Enaminones^a.

entry	Ar	product	yield^b (%)
1	Ph	3a	92
2	4-CH₃C₆H₄	3b	94
3	3-CH₃OC₆H₄	3c	96
4	2-CH₃C₆H₄	3d	78
5	3,4-(OCH₂O)C₆H₃	3e	88
6	4-ClC₆H₄	3f	90
7	4-BrC₆H₄	3g	91
8	4-CF₃C₆H₄	3h	86
9	4-NCC₆H₄	3i	84
10	3-ClC₆H₄	3j	89
11	3,4-Cl₂C₆H₃	3k	86
12	naphth-2-yl	3l	93
13	thiophen-3-yl	3m	85

General conditions: 1 (0.4 mmol), 2 (0.4 mmol) in 2 mL of H₂O stirred at 70 °C for 12 h under air atmosphere.

Yield of the isolated product.

Table 2. Catalyst-Free Synthesis of Different Disulfide-Functionalized Enaminonesa.