Diethyl Ether → HCID 9869084, compound

HRID 1108809Notes

Reaction equation

HRID 1108809 reaction equation
[NH2:1][C:2]1[N:6]([C:7]2[C:12]([Cl:13])=[CH:11][C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][C:8]=2[Cl:18])[N:5]=[C:4]([C:19]#[N:20])[C:3]=1I.C(=O)([O-])O.[Na+].[F:27][C:28]([F:39])([F:38])[C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=1B(O)O.CCOCC>C1(C)C=CC=CC=1.C(O)C.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.O>[NH2:1][C:2]1[N:6]([C:7]2[C:12]([Cl:13])=[CH:11][C:10]([C:14]([F:17])([F:16])[F:15])=[CH:9][C:8]=2[Cl:18])[N:5]=[C:4]([C:19]#[N:20])[C:3]=1[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][C:29]=1[C:28]([F:39])([F:38])[F:27]

Participants

9

Reactant 4

HCID 3283Diethyl EtherHCID 516892Sodium BicarbonateHCID 27343872-(Trifluoromethyl)benzeneboronic acidHCID 154620775-Amino-3-cyano-4-iodo-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]pyrazole

Product 1

HCID 9869084HCID 9869084, compound

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

To a rapidly stirred solution of 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-iodopyrazole (0.62 g) in toluene (5 ml) containing tetrakis(triphenylphosphine)palladium(0) (0.056 g) was added saturated aqueous sodium hydrogen carbonate solution (5 m) and a solution of 2-trifluoromethylphenylboronic acid (1.32 g) in ethanol (2.5 ml). The mixture was heated under reflux for 1.5 hours, cooled and then poured into ether (60 ml) and water (50 ml). The layers were separated and the aqueous phase extracted with a second portion of ether (60 ml). The combined organic layers were washed with water (2×40 ml), brine (40 ml) and then dried (Na2SO4) and evaporated. The residue was purified by column chromatography on silica gel (50 g) eluted with dichloromethane. Combination and evaporation of suitable fractions gave the title compound as a white crystalline solid, m.p. 210-2° C.

Workup

  1. temperatureThe mixture was heated
  2. temperatureunder reflux for 1.5 hours
  3. temperaturecooled
  4. customThe layers were separated
  5. extractionthe aqueous phase extracted with a second portion of ether (60 ml)
  6. washThe combined organic layers were washed with water (2×40 ml), brine (40 ml)
  7. dry with materialdried (Na2SO4)
  8. customevaporated
  9. customThe residue was purified by column chromatography on silica gel (50 g)
  10. washeluted with dichloromethane
  11. customCombination and evaporation of suitable fractions

Sources & evidence

ORD record
ord-e245b54825df4b578dded293fbf288cd
Source dataset
uspto-grants-2000_05
Patent number
US06069157

Reaction notes

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