1-(4-Bromophenyl)cyclobutane-1-carboxylic acid → (1-(4-Bromophenyl)cyclobutyl)methanol

関与物質

反応手順

To a solution of 1-(4-bromophenyl)cyclobutanecarboxylic acid (300 mg, 1.20 mmol) in 1,4-dioxane (5 mL) was added borane dimethylsulfide complex (0.24 mL, 2.4 mmol) dropwise at 0° C. The ice bath was removed, and the reaction mixture was stirred at room temperature for 10 min. The reaction mixture was quenched with methanol (20 mL). The organic solvents were removed under reduced pressure to give a residue, which was dissolved in ethyl acetate, then washed with brine. The organic phase was concentrated to give [1-(4-bromophenyl)cyclobutyl]methanol (170 mg, 62% yield) as a yellow oil which was used directly in the next step.

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