Water → HCID 59351187, compound

Participants

Reaction Steps

To a vial containing 1-tert-butyl 4-methyl piperidine-1,4-dicarboxylate (408 mg, 1.678 mmol) and 2,3-dichloropyrazine (250 mg, 1.678 mmol) in THF (2.5 mL) at rt under N2 is added dropwise LiHMDS (1.678 mL, 1.678 mmol). The reaction was stirred at rt 16 h. The reaction mixture was poured into H2O (10 mL) and extracted with EtOAc (3×20 mL). The combined organic layers were washed with saturated NaCl (10 mL), dried (MgSO4), and concentrated. Purification by ISCO (40 g SiO2, 0-75% EtOAc/Hexane) gives 1-tert-butyl 4-methyl 4-(3-chloropyrazin-2-yl)piperidine-1,4-dicarboxylate (565 mg, 1.588 mmol, 95% yield) as a clear, colorless oil. [M+Na]=378.0

Provenance & Evidence