[C:1](Cl)(Cl)=[S:2].[Cl:5][C:6]1[C:11]([NH2:12])=[CH:10][CH:9]=[C:8]([CH3:13])[N:7]=1.C(=O)([O-])[O-].[Na+].[Na+]>ClCCl>[Cl:5][C:6]1[C:11]([N:12]=[C:1]=[S:2])=[CH:10][CH:9]=[C:8]([CH3:13])[N:7]=1A solution of thiophosgene (3.871 g, 33.66 mmol) in dichloromethane (10 mL) was added to a mixture of 2-chloro-6-methylpyridin-3-amine (4.00 g, 28.05 mmol) and sodium carbonate (5.947 g, 56.11 mmol) in dichloromethane (200 mL). The reaction was stirred overnight at ambient temperature, then washed with water, brine, dried, and concentrated to afford the desired product (5.2 g, 100.4% yield) as a tan powder.
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