Cesium carbonate → 1-(4-Trifluoromethyl-benzyloxy)-naphthalene-2-carboxylic acid methyl ester

Beteiligte Stoffe

Reaktionsschritte

To 3.26 g caesium carbonate and 1.01 g methyl 1-hydroxy-2-naphthoate in 10 ml abs. DMF was added 1.21 g 1-bromomethyl-4-trifluoromethyl-benzene and the mixture was reacted for 3 h at room temperature. The reaction was partitioned between water and ethyl acetate and the aqueous layer was extracted with ethyl acetate twice. The combined organic phases were dried over magnesium sulphate and concentrated in vacuo. The resulting residue was purified by chromatography (silica, heptane) to yield 1.62 g of 1-(4-trifluoromethyl-benzyloxy)-naphthalene-2-carboxylic acid methyl ester.

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