Sodium sulfinate substrate scope^a,b,c.

Entry	2	3 b	Yieldc (%)
1	2a (R = Ph)	3aa	92
2	2b (R = 4-MeC6H4)	3ab	93
3	2c (R = 4-MeOC6H4)	3ac	90
4	2d (R = 4-ClC6H4)	3ad	87
5	2e (R = 4-FC6H4)	3ae	85
6	2f (R = 4-NO2C6H4)	3af	75
7	2g (R = 4-CNC6H4)	3ag	72
8	2h (R = 2-FC6H4)	3ah	88
9	2i (R = 2-ClC6H4)	3ai	87
10	2j (R = 2-OCF3C6H4)	3aj	72
11	2k (R = 3-BrC6H4)	3ak	82
12	2l (R = 3-CNC6H4)	3al	78
13	2m (R = 2,4-MeOC6H3)	3am	94
14	2n (R = 3,5-CF3C6H3)	3an	95
15	2o (R = 2-MeO, 5-BrC6H3)	3ao	84
16	2p (R = 3,4-ClC6H3)	3ap	87
17	2q (R = 2-naphthyl)	3aq	82
18	2r (R = 1-quinoline)	3ar	78
19	2s (R = 2,3-dihydrobenzofuran)	3as	92
20	2t (R = 3-pyridine)	3at	82
21	2u (R = 2-thiophene)	3au	86
22	2v (R = Me)	3av	72
23	2w (R = Et)	3aw	78
24	2x (R = iPr)	3ax	82
25	2y (R = cyclopropyl)	3ay	78
26	2z (R = CH3OCOCH2CH2)	3az	72

^aReaction conditions: Mo(CO)₆ (10 mol%), L1 (15 mol%), 1a (0.2 mmol), RSO₂Na 2 (0.3 mmol), EtOH (1.0 mL, 0.2 M), 60 °C, 24 hours.

^bDetermined by ¹H-NMR of the crude reaction mixture.

^cIsolated yields.