Water → 2-Isopropyl 4-methylpent-4 enoic acid, alpha-cyano-3 phenoxybenzyl ester

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Reaction Steps

A mixture of 2-isopropyl-4-methylpent-4-enoic acid (1.0g), alpha-cyano-3-phenoxybenzyl bromide (1.9g) and potassium carbonate (1.0g) in anhydrous acetone (40ml) was stirred at room temperature for 4 hours. Water was added to the reaction mixture and the product extracted with ether, the ethereal extracts washed with water (X2) and dried over magnesium sulphate. Evaporation of the solvent gave a crude product which was purified by chromatography on silica gel using 3% acetone in 60°-80° C. petroleum ether as eluent to give the desired ester. R.I. nD20 1.5343.

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