3-(2-Hydroxypropan-2-yl)benzoic acid synthesis
- Product Name:3-(2-Hydroxypropan-2-yl)benzoic acid
- CAS Number:40912-34-3
- Molecular formula:C10H12O3
- Molecular Weight:180.2
Yield:40912-34-3 76.25 %
Reaction Conditions:
in tetrahydrofuran at 0 - 70;
Steps:
84.1 Step 1: Preparation of 3-(2-hydroxypropan-2-yl)benzoic acid (Intermediate B)
To a solution of 3-acetylbenzoic acid (100 mg, 609.17 μmol) in THF (4 mL) was added MeMgBr (3 M, 1 .02 mL) drop-wise at 0°C and then the reaction mixture stirred at 70°C for 2 hours. The reaction mixture was quenched by addition HCI (2 N) solution (3 mL) . The above solution was diluted with NaOH (4 N) solution (4 mL) and extracted with EtOAc (8 mL) . The organic layer was discarded and the water layers were acidified by addition HCI (4 N) solution to pH=4, and then extracted with EtOAc (4 mL_ x 2). The combined organic layers were washed with brine (5 mL_ x 2), dried over Na2SO4, filtered and concentrated under reduced pressure to give Intermediate B (93 mg, 464.48 μmol, 76.25% yield) as a colorless oil. LCMS (ESI) m/z [M-OH]+ = 163.1 .
References:
WO2021/155316,2021,A1 Location in patent:Page/Page column 203-204
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