Phenylacetone → 3-Phenyl-6-(m-chlorophenyl)-5-hexen-2-one

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Reaction Steps

Sodium hydride (25.20 g., 0.60 mole, oil dispersion) is suspended in glyme (800 ml.) and phenyl acetone (80.50 g., 0.60 mole) in glyme (100 ml.) is added dropwise with stirring. After complete addition the mixture is heated to reflux for one hour. The mixture is cooled to room temperature and a solution of crude m-chlorocinnamyl bromide (139 g., 0.6 mole) in glyme (100 ml.) is added dropwise. When addition is complete the mixture is refluxed for 24 hours then allowed to cool. After filtration of inorganic salts and removal of solvent from the filtrate, vacuum distillation provides 36.11 g., b.p. 158.5°-163°/0.1 mm.

Provenance & Evidence