Water → Methyl 2'-cyano-5-(hydroxymethyl)-4'-methylbiphenyl-3-carboxylate
Reaction equation
[C:1]([C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[CH:5][C:4]=1[C:10]1[CH:15]=[C:14]([C:16]([O:18][CH3:19])=[O:17])[CH:13]=[C:12]([C:20](OC)=[O:21])[CH:11]=1)#[N:2].[BH4-].[Na+].O>CO>[C:1]([C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[CH:5][C:4]=1[C:10]1[CH:11]=[C:12]([CH2:20][OH:21])[CH:13]=[C:14]([C:16]([O:18][CH3:19])=[O:17])[CH:15]=1)#[N:2]Participants
5
Procedure
A solution of dimethyl 2′-cyano-4′-methylbiphenyl-3,5-dicarboxylate (343 mg, 1.05 mmol) in methanol (20 mL) was cooled at 0° C. and sodium tetrahydroborate (0.60 g, 16 mmol) was added slowly. The mixture was stirred at rt for 6 h, and then treated with water (20 mL). The volatiles were removed in vacuo and the acqueous phase was extracted with CH2Cl2 (30 mL×3). The combined organic layers were washed with brine, dried over anhydrous MgSO4, and concentrated in vacuo. The residue was purified by flash chromatography to afford the title compound.
Workup
- customThe volatiles were removed in vacuo
- extractionthe acqueous phase was extracted with CH2Cl2 (30 mL×3)
- washThe combined organic layers were washed with brine
- dry with materialdried over anhydrous MgSO4
- concentrationconcentrated in vacuo
- customThe residue was purified by flash chromatography
Sources & evidence
- ORD record
- ord-ba76b2e10c644971818b87d6f703e7f2
- Source dataset
- uspto-grants-2015_02
- Patent number
- US08946439B2
Reaction notes
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