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Dimethylformamide → Ethyl 2-(4-cyano-3-methoxyphenyl)propanoate

HRID 1428752
Notes
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Reaction equation

HRID 1428752 reaction equation
I[C:2]1[CH:7]=[CH:6][C:5]([CH:8]([CH3:14])[C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:4][C:3]=1[O:15][CH3:16].[CH3:17][N:18](C)C=O>C(OCC)(=O)C.[C-]#N.[Zn+2].[C-]#N.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[C:17]([C:2]1[CH:7]=[CH:6][C:5]([CH:8]([CH3:14])[C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:4][C:3]=1[O:15][CH3:16])#[N:18]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 2

HCID 6228DimethylformamideHCID 70855859Ethyl 2-(4-iodo-3-methoxyphenyl)propanoate

Product 1

HCID 66643920Ethyl 2-(4-cyano-3-methoxyphenyl)propanoateYield 51%

Reagents, catalysts & solvents 3

HCID 11186Zinc cyanide (Zn(CN)2)CatalystHCID 11979704Tetrakis(triphenylphosphine)palladium
Catalyst
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

To a stirred solution of ethyl 2-(4-iodo-3-methoxyphenyl)propanoate (626 mg, 1.873 mmol) in dimethylformamide were added zinc cyanide (227 mg, 1.929 mmol) and tetrakis(triphenylphosphine) palladium (216 mg, 0.1873 mmol). The reaction mixture was stirred for 36 h at 120° C., then cooled to room temperature, diluted with ethyl acetate. The mixture was filtered using celite pad. The filtrate dissolved in ethyl acetate and extracted with NaHCO3. The organic layer was dried over magnesium sulfate and filtered. The filtrate removed in vacuo. The crude was purified by column chromatography. Ethyl 2-(4-cyano-3-methoxyphenyl)propanoate (222 mg) was obtained as 51% yield.

Workup

  1. temperaturecooled to room temperature
  2. filtrationThe mixture was filtered
  3. dissolutionThe filtrate dissolved in ethyl acetate
  4. extractionextracted with NaHCO3
  5. dry with materialThe organic layer was dried over magnesium sulfate
  6. filtrationfiltered
  7. customThe filtrate removed in vacuo
  8. customThe crude was purified by column chromatography

Sources & evidence

ORD record
ord-0453661a1b554bf29fb5f9f05c19e92a
Source dataset
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08937092B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes