p-Anisoyl chloride → HCID 15030121, compound

Participants

Reaction Steps

To a suspension of 7.5 g (0.056 mole) of aluminum chloride in 100 ml of methylene dichloride (MDC) was added, rapidly with stirring, a solution of 6.2 ml (0.038 mole) of 4-methoxybenzoyl chloride. When addition was complete the mixture was stirred for one hour at room temperature and the resulting solution then added dropwise over a ten minute period with stirring to a solution of 8.5 g (0.031 mole) of 3-(4-morpholinylmethyl)-5-methyl-2,3-dihydropyrrolo-[1,2,3-de]-1,4-benzoxazine in 100 ml of MDC. The resulting mixture was then heated under reflux for thirty minutes, cooled and poured into 300 ml of ice water with stirring. The organic solvent was removed in vacuo, and the residual aqueous medium was diluted with ethyl acetate and neutralized by the addition of saturated aqueous sodium bicarbonate. The organic layer was separated, dried over magnesium sulfate, filtered through silica, taken to dryness in vacuo and chromatographed on silica gel, eluting with 1:1 hexane:ethyl acetate. There was thus obtained about 7 g of crude product which was recrystallized from ethyl acetate/hexane to give 6.0 g of 3-(4-morpholinylmethyl)-5-methyl-6-(4-methoxybenzoyl)-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazine, m.p. 182°-189° C.

Provenance & Evidence