反应详情

A −20° C. solution of (R)-1-(2-chloroethyl)-3-(tetrahydrofuran-3-yl)urea (0.522 g, 2.71 mmol) in THF (30 mL) was treated with NaH (60% in mineral oil, 0.130 g, 3.25 mmol) and the mixture stirred at RT overnight as the cooling bath expired. The mixture was treated with satd. NH4Cl, dried over MgSO4, concentrated to dryness and purified via silica gel chromatography (MeOH/DCM) to afford (R)-1-(tetrahydrofuran-3-yl)imidazolidin-2-one (280 mg, 66%). MS (ESI) m/z: 157.1 (M+H+).

1. additionThe mixture was treated with satd
2. dry with materialNH4Cl, dried over MgSO4
3. concentrationconcentrated to dryness
4. custompurified via silica gel chromatography (MeOH/DCM)