Sodium Carbonate → HCID 3121010, compound

HRID 1940062Notes

Reaction equation

HRID 1940062 reaction equation
[NH2:1][CH:2]([C:7]1[CH:12]=[CH:11][C:10]([O:13][CH3:14])=[CH:9][CH:8]=1)[CH2:3][C:4]([OH:6])=[O:5].C(=O)([O-])[O-].[Na+].[Na+].C(N1[C:30](=[O:31])[C:29]2=[CH:32][CH:33]=[CH:34][CH:35]=[C:28]2[C:27]1=[O:36])(OCC)=O>C(#N)C.O>[C:27]1(=[O:36])[N:1]([CH:2]([C:7]2[CH:8]=[CH:9][C:10]([O:13][CH3:14])=[CH:11][CH:12]=2)[CH2:3][C:4]([OH:6])=[O:5])[C:30](=[O:31])[C:29]2=[CH:32][CH:33]=[CH:34][CH:35]=[C:28]12

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 31187N-CarbethoxyphthalimideHCID 5858893-Amino-3-(4-methoxyphenyl)propanoic acid

Product 1

HCID 3121010HCID 3121010, compoundYield 87%

Reagents, catalysts & solvents 1

HCID 18373917Acetonitrile--water (1/1)Solvent

Procedure

To a stirred mixture of 3-amino-3-(4-methoxyphenyl)propionic acid (1.95 g, 10.0 mmol) and sodium carbonate (1.11 g, 10.5 mmol) in 200 mL of acetonitrile-water 1:1 is added N-carboethoxyphthalimide (2.26 g, 10.0 mmol). After 1 hour, the reaction slurry is filtered. The filtrate is concentrated to remove the acetonitrile and the pH adjusted to 1-2 with 4N hydrochloric acid and stirred over night. The resulting slurry is filtered and the solid washed with water. The solid is dried in vacuo (60 C, <1 mm) to afford 2.82 g (87%) of 3-phthalimido-3-(4-methoxyphenyl)propionic acid as a white powder: mp 160°-164° C.; 1H NMR (DMSO-6, 250 MHz) δ12.5 (br s, 1H), 7.95-7.80 (m, 4H), 7.36 (d, 2H, J=8.7), 6.92 (d, 2H, J=8.4 Hz), 5.18-5.10 (m, 1H), 3.70-3.15 (m, 2H); 13C NMR (DMSO-d6) δ171.7, 167.6, 158.6, 134.6, 131.0, 130.8, 128.3, 123.1, 113.9, 55.0, 49.6, 35.9. Anal. Calculated for C18H15 NO5. Theoretical: C, 66.46; H, 4.63; N, 4.31. Found: C, 66.25; H, 4.65; N, 4.28.

Workup

  1. filtrationthe reaction slurry is filtered
  2. concentrationThe filtrate is concentrated
  3. customto remove the acetonitrile
  4. filtrationThe resulting slurry is filtered
  5. washthe solid washed with water
  6. customThe solid is dried in vacuo (60 C, <1 mm)

Sources & evidence

ORD record
ord-ab3cfc3e0b344a968abd2456cc2675d4
Source dataset
uspto-grants-1997_12
Patent number
US05698579

Reaction notes

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