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ChemicalBook CAS DataBase List 3-FLUORO-4-METHOXYBENZYL ALCOHOL
96047-32-4

3-FLUORO-4-METHOXYBENZYL ALCOHOL synthesis

3synthesis methods
-

Yield: 100%

Reaction Conditions:

with Trimethyl borate;dimethylsulfide borane complex in tetrahydrofuran at 0 - 20;

Steps:

(3-Fluoro-4-methoxyphenyl)methanol (64)
Borane-dimethylsulfide complex (2.79 mL, 29.40 mmol) and trimethyl borate (3.34 mL, 29.40 mmol) were added to a solution of 3-fluoro-4-methoxybenzoic acid (2.50 g, 14.69 mmol) in THF (80 mL, dist. Na) at 0 °C, and the solution warmed to r.t. and stirred overnight. The mixture was then cooled to 0 °C, and quenched with MeOH (10 mL). The solvent was then evaporated and the residue was partitioned between EtOAc and water. The organic layer was then dried and evaporated to afford the product 64. Yield = 2.35 g, 100%. 1H NMR (CDC13) δ 7.11 (1H, dd, J = 2.0, 11.9 Hz), 7.06 (1H, ddd, J = 0.9, 2.0, 9.1 Hz), 6.94 (1H, dd, J = 8.4, 8.4 Hz), 4.61 (2H, s), 3.89 (3H, s), 1.73 (1H, s). Found: [M-OH] =139.7

References:

THE GLOBAL ALLIANCE FOR TB DRUG DEVELOPMENT, INC.;UPTON, Anna, Marie;COOPER, Christopher, Blair;MARCEL, Koenraad, Jozel Lodewijk;GUILLEMONT, Jerome, Emile Goerges;VAN DEN BROECK, Walter Marcel, Mathilde;PALMER, Brian, Desmond;MA, Zhenkun WO2017/155909, 2017, A1 Location in patent:Paragraph 0119

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