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Ethanol → Ethyl 2-(2-chlorophenyl)acetate

HRID 1868853
Notes
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Reaction equation

HRID 1868853 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-07db39e73347461c87daf4475d2e0216
Source dataset
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07635715B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes