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Ethanol → Ethyl 2-(2-chlorophenyl)acetate

HRID 2078261
Notes
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Reaction equation

HRID 2078261 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([OH:11])=[O:10].[CH3:12][CH2:13]O.OS(O)(=O)=O>>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 3

HCID 702EthanolHCID 1118Sulfuric AcidHCID 17124o-Chlorophenylacetic acid

Product 1

HCID 10081468Ethyl 2-(2-chlorophenyl)acetateYield 96.3%

Conditions

Temperature
90 °C

Procedure

A solution of 2-chlorophenylacetic acid (10.12 g, 59.3 mmol) in EtOH (150 mL, 2576 mmol) in a 500 mL round bottom flask was treated with concentrated H2SO4 (0.700 mL, 8.28 mmol) and heated at 90° C. for 16 hours. The solution was concentrated in vacuo, diluted with 1N NaOH(aq) (200 mL), and extracted with EtOAc (2×200 mL). The combined organic layers were washed with 1N NaOH(aq) (200 mL), water (100 mL), and brine (100 mL). The organic layer was dried over MgSO4, concentrated, and dried in vacuo to give ethyl 2-(2-chlorophenyl)acetate (11.344 g). MS m/e=217 (M+H)+.

Workup

  1. concentrationThe solution was concentrated in vacuo
  2. additiondiluted with 1N NaOH(aq) (200 mL)
  3. extractionextracted with EtOAc (2×200 mL)
  4. washThe combined organic layers were washed with 1N NaOH(aq) (200 mL), water (100 mL), and brine (100 mL)
  5. dry with materialThe organic layer was dried over MgSO4
  6. concentrationconcentrated
  7. customdried in vacuo

Sources & evidence

ORD record
ord-e57952b9f2094ba2813bf52c4970170a
Source dataset
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07928139B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes