Hydrochloric Acid → Ethyl 3-(2-benzyloxy-ethoxy)-propionate

HRID 2222528Notes

Reaction equation

HRID 2222528 reaction equation
[CH2:1]([O:8][CH:9](O)[CH3:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Na].[C:13]([O:17][CH2:18][CH3:19])(=[O:16])[CH:14]=[CH2:15].Cl.C1C[O:24]CC1>>[CH2:1]([O:8][CH2:9][CH2:10][O:24][CH2:15][CH2:14][C:13]([O:17][CH2:18][CH3:19])=[O:16])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 5

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 8821Ethyl AcrylateHCID 5360545SodiumHCID 19595026Benzyloxyethanol

Product 1

HCID 66731906Ethyl 3-(2-benzyloxy-ethoxy)-propionate

Procedure

8.53 ml (60.0 mmol) benzyloxy-ethanol are combined with 13 mg (0.57 mmol) sodium in 40 ml THF, then when it has dissolved 5.95 ml (54.7 mmol) ethyl acrylate are added under an argon atmosphere and stirred for 20 hours at ambient temperature. After neutralising with 0.6 ml 1-molar hydrochloric acid the reaction mixture is evaporated down i. vac., the residue is taken up in sat. sodium chloride solution and extracted with ethyl acetate. The combined organic phases are washed with sat. sodium chloride solution, dried over sodium sulphate and evaporated down i. vac. The residue is purified by chromatography on silica gel (eluant: petroleum ether/ethyl acetate=4:1).

Workup

  1. additionare added under an argon atmosphere
  2. customis evaporated down i
  3. extractionextracted with ethyl acetate
  4. washThe combined organic phases are washed with sat. sodium chloride solution
  5. dry with materialdried over sodium sulphate
  6. customevaporated down i
  7. customThe residue is purified by chromatography on silica gel (eluant: petroleum ether/ethyl acetate=4:1)

Sources & evidence

ORD record
ord-b9a3c06015154b5d86b13009ff043819
Source dataset
uspto-grants-2008_05
Patent number
US07371743B2

Reaction notes

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