4-Chloroanisole → HCID 66701168, compound

Participants

Reaction Steps

Sodium t-butoxide (599 mg, 6.24 mmol, 3.0 eq.) was added to a stirred solution of tert-butyl 2,8-diazaspiro[4.5]decane-2-carboxylate (500 mg, 2.08 mmol, 1.0 eq.) and 1-chloro-4-methoxybenzene (389 mg, 2.08 mmol, 1.0 eq.) in toluene (25 ml) and the reaction mixture was degassed with Nitrogen. BINAP (51.8 mg, 0.083 mmol, 0.04 eq.) and Pd(OAc)2 (10 mg, 0.0416 mmol, 0.02 equiv) were added and the resulting mixture was heated at reflux for 16 h. The reaction mixture was filtered through celite and the filtrate was evaporated under reduced pressure to afford the crude product which was purified by column chromatography (silica gel; 0-10% EtOAdhexanes) to give the pure product as an oil. Yield: 35% (250 mg, 0.722 mmol).

Provenance & Evidence