Malononitrile → HCID 86678961, compound

Participants

Reaction Conditions

Reaction Steps

DBU (2.56 mL, 8.1 mmol) was added dropwise to a −78° C. THF (20 mL) solution of malononitrile (1.12 g, 17 mmol) and the intermediate from Step C (1.49 g, 5.66 mmol). The reaction solution was stirred at −78° C. for 15 minutes and then at room temperature for 1 hour. The solution was then concentrated and the residue purified by silica gel chromatography using a hexanes/EtOAc gradient to give the indicated product. 1H NMR δ (ppm) (CHCl3-d): 4.79 (1H, s), 4.30 (2H, dd, J=7.1, 2.6 Hz), 2.64 (3H, s), 2.02 (3H, s), 1.31-1.25 (3H, m).

Provenance & Evidence