tert-Butyl acrylate → HCID 58692462, compound

Participants

Reaction Steps

To a solution of 6-bromo-3-(2-dimethylamino-ethyl)-3,4-dihydro-1H-pyrido[2,3-d]pyrimidin-2-one (240 mg, 0.802 mmol) in propionitrile (16 mL) and DMF (4 mL) was added tert-butyl acrylate (0.46 mL, 3.2 mmol) and (i-Pr)2EtN (0.28 mL, 1.6 mmol), Pd(OAc)2 (18 mg, 0.080 mmol) and P(o-tol)3 (49 mg, 0.16 mmol). The mixture was degassed with Ar for 15 min. The mixture was heated to reflux overnight, and then allowed to cool. The dark solution was filtered through a pad of Celite. The filtrate was concentrated. Purification by column chromatography (silica gel, CH2Cl2/MeOH/Et3N, 94/5.5/0.5) gave the title compound (150 mg, 54%) as a pale-yellow solid: MS (ESI) m/e 347 (M+H)+.

Provenance & Evidence