2,4-Dichlorophenol → HCID 69710235, compound

Participants

Reaction Steps

A mixture of tert-butyl 4-chloro-2-methylthio-5,6,7,8-tetrahydropyridino[4,3-d]pyrimidine-6-carboxylate (100 mg, 0.317 mmol), 2,4-dichlorophenol (57 mg, 0.348 mmol) and sodium bis(trimethylsilyl)amide (1.0 M solution in THF, 412 μl, 0.412 mmol) in tetrahydrofuran (2 ml) was heated at reflux over night. The mixture was partitioned between ethyl acetate and water. Organic layer was separated and washed with brine, dried (MgSO4) and filtered. Concentration of filtrate afforded crude product (180 mg), which was purified by flash chromatography (0.5% methanol in dichloromethane as eluent) to give tert-butyl 4-(2,4-dichlorophenoxy)-2-methylthio-5,6,7,8-tetrahydropyridino[4,3-d]pyrimidine-6-carboxylate as a white foam (52 mg, yield 37%).

Provenance & Evidence