HCID 13600230, compound → HCID 90033029, compound

Participants

Reaction Steps

Into a 1000-mL three-neck round-bottom flask, which was purged and maintained with an inert atmosphere of nitrogen, was placed a solution of 4-methyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazole (compound 192.1, 9 g, 42.38 mmol) in tetrahydrofuran (200 mL). This was followed by the addition of n-BuLi (34 mL, 2.5 M in THF) dropwise at −78° C. and stirred for 1 h. To this was added a solution of oxetan-3-one (6.11 g, 84.79 mmol) in tetrahydrofuran (30 mL) dropwise at −78° C. The reaction mixture was stirred for 1 h at −78° C., then quenched with 50 mL of NH4Cl (sat.). The aqueous phase was extracted with 1×600 mL of ethyl acetate. The organic layer was washed with 3×300 mL of brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. This resulted in 13 g (crude) of the title compound as a light yellow solid.

Provenance & Evidence