2,5-Bis(4-(3,5,5-trimethylhexyl)benzoyl)terephthalic acid → 2,5-Bis[4-(3,5,5-trimethylhexyl)benzyl]terephthalic acid

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A mixture containing 20.0 grams of 2,5-bis[4-(3,5,5-trimethylhexyl)benzoyl]terephthalic acid in 1500 mL of tetrahydrofuran (THF) and 1.4 grams of 10% palladium on carbon (as a catalyst) was heated to 90° C. in an atmosphere of hydrogen at 620 kPa and 90° C. for 17 hours. The mixture was filtered through Celite™ diatomaceous earth filter agent to remove the catalyst. The filtrate was concentrated in vacuo to give 2,5-bis[4-(3,5,5-trimethylhexyl)benzyl]terephthalic acid.

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