1,1'-Carbonyldiimidazole → HCID 59280003, compound

Participants

Reaction Steps

CDI (1.42 g, 8.76 mmol) was added to a solution of 2,2-dimethylpent-4-en-1-ol [Ref.: E. Alexander Hill et al., 46(6) J. Org. Chem. 1177-82 (1981).] (1.00 g, 8.76 mmol) in DMF (12 mL) cooled with a water bath. The mixture was stirred for 30 minutes at RT. Methyl (2S)-amino(cyclohexyl)acetate hydrochloride (1.82 g, 8.76 mmol) was then added, and the mixture was heated to 50° C. for 16 hours and then cooled to RT. The reaction mixture was partitioned between EtOAc and water/1N HCl. The organic layer was extracted with water (3×) and brine. The organic layer was then dried over MgSO4, filtered and concentrated. The crude material was purified on silica gel (gradient elution, 0-10% EtOAc/hexane) to yield the title product (2.04 g, 75% yield). LRMS ESI+ (M+H)+ 312.5.

Provenance & Evidence