Potassium Carbonate → HCID 59355006, compound

HRID 2196410Notes

Reaction equation

HRID 2196410 reaction equation
Br[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[F:11].C([O-])([O-])=O.[K+].[K+].CC1(C)COB([C:25]2[N:29]([CH3:30])[N:28]=[CH:27][CH:26]=2)OC1>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:11][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:2]=1[C:25]1[N:29]([CH3:30])[N:28]=[CH:27][CH:26]=1)[C:6]([OH:8])=[O:7]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 27733414-Bromo-3-fluorobenzoic acidHCID 441194445-(5,5-Dimethyl-1,3,2-dioxaborinan-2-YL)-1-methyl-1H-pyrazole

Product 1

HCID 59355006HCID 59355006, compound

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 218864351,4-Dioxane--water (1/1)Solvent

Conditions

Temperature
80 °C

Procedure

To a solution of 4-bromo-3-fluorobenzoic acid (110 mg, 0.5 mmol) in dioxane/H2O (5:1, 6 mL) was added K2CO3 (207 mg, 1.5 mmol), tetrakistriphenylphosphine Pd(0) (29 mg, 0.025 mmol) and 5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1-methyl-1H-pyrazole (107 mg, 0.55 mmol). The reaction mixture was heated to 80° C. in a sealed tube for 12 h and was then partitioned between 6N NaOH and DCM. The pH of the aqueous phase was adjusted to ˜3 with 3M HCl and washed several times with DCM. The combined organic fractions were dried (Na2SO4), concentrated under vacuum and used directly without further purification (98 mg, 89%): LC-MS (ES) m/z=221 (M+H)+.

Workup

  1. customwas then partitioned between 6N NaOH and DCM
  2. washwashed several times with DCM
  3. dry with materialThe combined organic fractions were dried (Na2SO4)
  4. concentrationconcentrated under vacuum
  5. customused directly without further purification (98 mg, 89%)

Sources & evidence

ORD record
ord-a4572967d01b45aab3e1d917ac71f961
Source dataset
uspto-grants-2012_12
Patent number
US08338434B2

Reaction notes

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