Potassium Carbonate → Methyl 2-cyano-3-{4-[(3-hydroxybenzyl)oxy]phenyl}propanoate

HRID 922188Notes

Reaction equation

[CH3:1][O:2][C:3](=[O:15])[CH:4]([C:13]#[N:14])[CH2:5][C:6]1[CH:11]=[CH:10][C:9]([OH:12])=[CH:8][CH:7]=1.C([O-])([O-])=O.[K+].[K+].Br[CH2:23][C:24]1[CH:25]=[C:26]([OH:30])[CH:27]=[CH:28][CH:29]=1>C(#N)C>[C:13]([CH:4]([CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[C:26]([OH:30])[CH:25]=2)=[CH:8][CH:7]=1)[C:3]([O:2][CH3:1])=[O:15])#[N:14]

Participants

Conditions

Temperature: 50 °C

Procedure

To a 50 mL RB flask fitted with magnetic stirrer was charged 10 mL of acetonitrile. To the stirred solvent was added 2-cyano-3-(4-hydroxy-phenyl)-propanoic acid methyl ester (0.3 g, 1.57 mmol), followed by K2CO3 (0.65 g, 4.71 mmol) and 3-bromomethyl-phenol (0.294 g, 1.57 mmol). After addition, the RM was heated at 50° C. for 1 h. After 1 h, the RM was concentrated to distill off the solvent, water (20 mL) was added and the aqueous layer was extracted with ethyl acetate (15 mL×2). The organic layer was dried over anhydrous Na2SO4. The solvent was removed under reduced pressure. The product was obtained as yellow liquid. (0.32 g, yield: 65.44%); MS (ESI, 120 eV): m/z=310.0 (M−H)+.

Workup

customTo a 50 mL RB flask fitted with magnetic stirrer
additionAfter addition
concentrationthe RM was concentrated
distillationto distill off the solvent, water (20 mL)
additionwas added
extractionthe aqueous layer was extracted with ethyl acetate (15 mL×2)
dry with materialThe organic layer was dried over anhydrous Na2SO4
customThe solvent was removed under reduced pressure
customThe product was obtained as yellow liquid

Sources & evidence

ORD record: ord-007197abdec54f5ba21618a455d5b049
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09278915B2

Reaction notes

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