Potassium Carbonate → 1-(p-Chlorophenyl)-1-cyclopropyl-2-fluoro-4-(4-fluoro-3-phenoxyphenyl)-1,3-butadiene

HRID 1596830Notes

Reaction equation

HRID 1596830 reaction equation
[Cl:1][C:2]1[CH:15]=[CH:14][C:5]([C:6]([CH:11]2[CH2:13][CH2:12]2)=[C:7]([F:10])[CH:8]=O)=[CH:4][CH:3]=1.[F:16][C:17]1[CH:22]=[CH:21][C:20]([CH2:23]S(F)(=O)=O)=[CH:19][C:18]=1[O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C.C1OCCOCCOCCOCCOCCOC1>[Cl:1][C:2]1[CH:15]=[CH:14][C:5]([C:6]([CH:11]2[CH2:13][CH2:12]2)=[C:7]([F:10])[CH:8]=[CH:23][C:20]2[CH:21]=[CH:22][C:17]([F:16])=[C:18]([O:28][C:29]3[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=3)[CH:19]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 12113197(4-Fluoro-3-phenoxyphenyl)methanesulfonyl fluorideHCID 540115002-Fluoro-3-cyclopropyl-3-(p-chlorophenyl)acrylaldehyde

Product 1

HCID 540353111-(p-Chlorophenyl)-1-cyclopropyl-2-fluoro-4-(4-fluoro-3-phenoxyphenyl)-1,3-butadieneYield 93%

Reagents, catalysts & solvents 2

HCID 2855718-Crown-6CatalystHCID 6342AcetonitrileSolvent

Procedure

A mixture of p-chloro-β-cyclopropyl-α-fluorocinnamaldehyde (224.6 mg, 1 mmol), (4-fluoro-3-phenoxyphenyl)methanesulfonyl fluoride (312.7 mg, 1.1 mmol), potassium carbonate (552.8 mg, 4 mmol), and 18-crown-6 (13.2 mg, 0.05 mmol) in acetonitrile is stirred at room temperature overnight, quenched with water, and extracted with ethyl acetate. The organic extract is washed with water, dried over anhydrous sodium sulfate, and concentrated in vacuo to give the title product (380 mg, 94% pure by GC analysis, 93% yield) which is identified by NMR spectral analyses.

Workup

  1. customquenched with water
  2. extractionextracted with ethyl acetate
  3. extractionThe organic extract
  4. washis washed with water
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a4e16782842a4a11afce7326db360e6d
Source dataset
uspto-grants-2001_09
Patent number
US06291721B1

Reaction notes

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