4-(4-{1-Ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1,1,1-trifluoro-2-trifluoromethyl-3-butyn-2-ol → 4-(4-{1-Ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1,1,1-trifluoro-2-trifluoromethyl-butan-2-ol

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Reaction Steps

10% palladium-carbon (50 mg) was added to a solution of 4-(4-{1-ethyl-1-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-propyl}-2-methyl-phenyl)-1,1,1-trifluoro-2-trifluoromethyl-3-butyn-2-ol (Example 27-(1); 142 mg, 0.249 mmol) in methanol (6 mL), and the mixture was stirred in a hydrogen atmosphere at room temperature for five hours. Then, the reaction mixture was filtered through celite, and the filtrate was concentrated under reduced pressure to give the target product as a colorless oil (134 mg, 94%).

Provenance & Evidence