Potassium Phosphate, Tribasic → HCID 57441128, compound

HRID 1692389Notes

Reaction equation

HRID 1692389 reaction equation
[CH3:1][O:2][C:3](=[O:14])[C:4]1[C:9]([CH3:10])=[CH:8][C:7](Cl)=[N:6][C:5]=1[O:12][CH3:13].[F:15][C:16]([F:27])([F:26])[C:17]1[CH:18]=[C:19](B(O)O)[CH:20]=[CH:21][CH:22]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>CN(C=O)C.[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>[CH3:1][O:2][C:3](=[O:14])[C:4]1[C:9]([CH3:10])=[CH:8][C:7]([C:21]2[CH:20]=[CH:19][CH:18]=[C:17]([C:16]([F:27])([F:26])[F:15])[CH:22]=2)=[N:6][C:5]=1[O:12][CH3:13]

Participants

6

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 27343883-(Trifluoromethyl)phenylboronic acidHCID 57441127Methyl 6-chloro-2-methoxy-4-methylnicotinate

Product 1

HCID 57441128HCID 57441128, compoundYield 98.3%

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 5.75 g (26.7 mmol) of 6-chloro-2-methoxy-4-methyl-nicotinic acid methyl ester in 250 ml of DMF was added 10.13 g (53.3 mmol) of 3-trifluoromethyl-phenyl-boronic acid followed by 50.0 ml of a solution of tribasic potassium phosphate (2 M in water). Finally, 1.54 g (1.3 mmol) of tetrakis-(triphenylphosphine)-palladium was added and the reaction mixture was subsequently warmed up to 80° C. After 5 hours, it was cooled down to RT, poured into crashed ice and extracted twice with CH2Cl2; the organic phases were washed with water, dried over magnesium sulfate, filtered and evaporated. The residue was purified by flash column chromatography (heptane/EtOAc 1:0 to 9:1) to give 8.54 g (98%) of the title compound as light yellow oil. MS: 326.1 (MH+).

Workup

  1. temperatureit was cooled down to RT
  2. additionpoured
  3. extractionextracted twice with CH2Cl2
  4. washthe organic phases were washed with water
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. customevaporated
  8. customThe residue was purified by flash column chromatography (heptane/EtOAc 1:0 to 9:1)

Sources & evidence

ORD record
ord-6c5a533e971c49c2a50ff4c93f968f9f
Source dataset
uspto-grants-2012_04
Patent number
US08153805B2

Reaction notes

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