Dimethylformamide → n-[6-Chloro-4-(2-chloro-phenyl)-pyridin-3-yl]-2-(3-chloro-5-difluoromethoxy-phenyl)-n-methyl-isobutyramide

HRID 1951666Notes

Reaction equation

HRID 1951666 reaction equation
[Cl:1][C:2]1[N:7]=[CH:6][C:5]([N:8]([CH3:22])[C:9](=[O:21])[C:10]([C:13]2[CH:18]=[C:17]([OH:19])[CH:16]=[C:15]([Cl:20])[CH:14]=2)([CH3:12])[CH3:11])=[C:4]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[Cl:29])[CH:3]=1.CN(C)C=O.Cl[C:36]([F:43])([F:42])C(OCC)=O>O>[Cl:1][C:2]1[N:7]=[CH:6][C:5]([N:8]([CH3:22])[C:9](=[O:21])[C:10]([C:13]2[CH:18]=[C:17]([O:19][CH:36]([F:43])[F:42])[CH:16]=[C:15]([Cl:20])[CH:14]=2)([CH3:11])[CH3:12])=[C:4]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[Cl:29])[CH:3]=1

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 67843Acetic acid, 2-chloro-2,2-difluoro-, ethyl esterHCID 86597668N-[6-Chloro-4-(2-chloro-phenyl)-pyridin-3-yl]-2-(3-chloro-5-hydroxy-phenyl)-N-methyl-isobutyramide

Product 1

HCID 87304771n-[6-Chloro-4-(2-chloro-phenyl)-pyridin-3-yl]-2-(3-chloro-5-difluoromethoxy-phenyl)-n-methyl-isobutyramideYield 49%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
65 °C

Procedure

To a solution of 0.700 g (1.56 mmol) N-[6-chloro-4-(2-chloro-phenyl)-pyridin-3-yl]-2-(3-chloro-5-hydroxy-phenyl)-N-methyl-isobutyramide in 10 ml N,N-Dimethylformamide 0.215 g (1.56 mmol) K2CO3 and 0.2 ml (1.56 mmol) ethyl chlordifluoroacetate was added and the resulting suspension heated at 65° C. for 15 h. After cooling to ambient temperature, the reaction mixture was poured into 75 ml water and extracted three times with 80 ml CH2Cl2. The combined organic solvents were dried (Na2SO4), filtered and evaporated. The residue was purified by flash-chromatography (SiO2, CH2Cl2/ethyl acetate 4:1) to give 0.38 g (49%) of the title compound as a white solid.

Workup

  1. temperatureAfter cooling to ambient temperature
  2. extractionextracted three times with 80 ml CH2Cl2
  3. dry with materialThe combined organic solvents were dried (Na2SO4)
  4. filtrationfiltered
  5. customevaporated
  6. customThe residue was purified by flash-chromatography (SiO2, CH2Cl2/ethyl acetate 4:1)

Sources & evidence

ORD record
ord-56e882979e7543a58dfd82f638d41fa4
Source dataset
uspto-grants-2013_03
Patent number
US08404708B2

Reaction notes

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