Cesium carbonate → 2-(2-(2,2-Diethoxyethoxy)phenyl)ethanol

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2-bromo-1,1-diethoxyethane (5.13 g) was added to a stirred mixture of cesium carbonate (8.49 g) and 2-(2-hydroxyethyl)phenol (3.00 g) in DMF (20 mL). After 5 minutes the reaction mixture was heated at 80° C. 16 h, the reaction mixture was allowed to cool and partitioned between ethyl acetate and water. The ethyl acetate layer was washed with water (×3) then evaporated. Purification by silica gel chromatography eluting with ethyl acetate:iso-hexanes, 1:3 gave the subtitle compound as a green oil. Yield 3.6 g.

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