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A mixture of dibenzoylmethane (100 g) and 5% palladium on carbon (10.0 g) in ethyl acetate (600 ml) and concentrated sulfuric acid (15 ml) was hydrogenated at a hydrogen pressure of 60 psi and at room temperature. After 2 hours, the reaction was allowed to cool to room temperature. Reaction mixture filtered through talc. The filtrate was treated with water (2×250 ml) and phases separated. The organic phase was treated with saturated aqueous sodium bicarbonate (250 ml). The organic phase was dried over sodium chloride then magnesium sulfate, filtered, concentrated vacuo to give 75.34 g of 1,3-diphenylpropane.

1. customReaction mixture
2. filtrationfiltered through talc
3. additionThe filtrate was treated with water (2×250 ml) and phases
4. customseparated
5. additionThe organic phase was treated with saturated aqueous sodium bicarbonate (250 ml)
6. dry with materialThe organic phase was dried over sodium chloride
7. filtrationmagnesium sulfate, filtered
8. concentrationconcentrated vacuo