Hydroxyphenylacetic acid → HCID 14208885, compound

HRID 1741652Notes

Reaction equation

HRID 1741652 reaction equation
[K].[OH:2][C:3]1[CH:8]=[CH:7][C:6]([CH2:9][C:10]([OH:12])=[O:11])=[CH:5][CH:4]=1.[C:13]([O:19][CH2:20]Cl)(=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15]>CN(C)C=O>[OH:2][C:3]1[CH:4]=[CH:5][C:6]([CH2:9][C:10]([O:12][CH2:20][O:19][C:13](=[O:18])[C:14]([CH3:17])([CH3:16])[CH3:15])=[O:11])=[CH:7][CH:8]=1

Participants

5

Reactant 3

HCID 127Hydroxyphenylacetic acidHCID 87885Chloromethyl pivalateHCID 5462222Potassium

Product 1

HCID 14208885HCID 14208885, compoundYield 70.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

The potassium salt of 4-hydroxyphenylacetic acid (9.5 g, 0.05 mL) was suspended in dimethylformamide (25 mL). Chloromethyl pivalate (7.53 g, 0.05 mol) was added and the reaction mixture was stirred at room temperature for 24 hours. The reaction mixture was poured into ice water and extracted with ethyl acetate (100 mL). The ethyl acetate layer was washed, first with aqueous 5% NaHCO3 (100 mL) and then twice with water, then was dried over anhydrous MgSO4, filtered and evaporated to yield pivalyloxymethyl 4-hydroxyphenylacetate, melting at 159°-161° C. (yield 70.2%).

Workup

  1. extractionextracted with ethyl acetate (100 mL)
  2. washThe ethyl acetate layer was washed, first with aqueous 5% NaHCO3 (100 mL)
  3. dry with materialtwice with water, then was dried over anhydrous MgSO4
  4. filtrationfiltered
  5. customevaporated

Sources & evidence

ORD record
ord-38b54f29223d4bb8b8c6fadd47a65f47
Source dataset
uspto-grants-1994_08
Patent number
US05334601

Reaction notes

Loading…