Water → HCID 73013037, compound

HRID 1929797Notes

Reaction equation

HRID 1929797 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:6]=[N:7][C:8]([Cl:12])=[C:9](Br)[CH:10]=1)=[O:4].[Cl:13][C:14]1[CH:19]=[CH:18][C:17](B(O)O)=[CH:16][CH:15]=1.C(=O)([O-])[O-].[Na+].[Na+].O>C1(C)C=CC=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].C(Cl)Cl>[CH3:1][O:2][C:3](=[O:4])[C:5]1[CH:10]=[C:9]([C:17]2[CH:18]=[CH:19][C:14]([Cl:13])=[CH:15][CH:16]=2)[C:8]([Cl:12])=[N:7][CH:6]=1

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 742994-Chlorophenylboronic acidHCID 2764313Methyl 5-bromo-6-chloronicotinate

Product 1

HCID 73013037HCID 73013037, compoundYield 64.8%

Reagents, catalysts & solvents 2

HCID 178418807HCID 178418807, compoundCatalystHCID 1140TolueneSolvent

Conditions

Temperature
90 °C

Procedure

5-Bromo-6-chloro-3-pyridinecarboxylic acid methyl ester (42.2 g, 0.169 mol, CA 78686-77-8) was dissolved in toluene (840 mL). To this solution was added with stirring [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) CH2Cl2 (6.9 g, 8.4 mmol), 4-chlorophenylboronic acid (27.2 g, 0.169 mol) and sodium carbonate solution (2M, 170 mL). This mixture was heated to 90° C. for 1 h and cooled to room temperature. Water (400 mL) was added, the phases were separated and the water mixture was extracted with ethylacetate. Organic phases were pooled, dried with MgSO4 and the volatiles removed in vacuo. The residue was purified by flash chromatography (SiO2, heptane/CH2Cl2) to give the title compound (30.9 g) as a white solid; MS (EI) 281.1, 283.0 (M)+.

Workup

  1. temperaturecooled to room temperature
  2. customthe phases were separated
  3. extractionthe water mixture was extracted with ethylacetate
  4. dry with materialdried with MgSO4
  5. customthe volatiles removed in vacuo
  6. customThe residue was purified by flash chromatography (SiO2, heptane/CH2Cl2)

Sources & evidence

ORD record
ord-424f89e4e51d4cd7a3468d327192f1c0
Source dataset
uspto-grants-2012_05
Patent number
US08188093B2

Reaction notes

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