Water → 4-(6-Methoxy-quinazolin-4-yloxymethyl)-cyclohexanone

Participants

Reaction Steps

Triethylamine (10 ml, 71 mmol) and then, in portions, Pyr.SO3 (5.8 g, 36 mmol), were added at 0° C. to a solution of 4-(6-methoxy-quinazolin-4-yloxymethyl)-cyclohexanol (2.88 g, 10 mmol) in DMSO (30 ml). The reaction mixture was stirred at that temperature for 15 minutes and then allowed to come to room temperature. After 2 hours, water (300 ml) was added. The aqueous phase was extracted with ether (3×150 ml). The combined organic phases were washed with saturated sodium chloride solution, dried over MgSO4 and concentrated. The crude product was purified by chromatography on silica gel (EtOAc/hex 1/2).

Provenance & Evidence