Diethyl Ether → HCID 9955245, compound

HRID 1274331Notes

Reaction equation

HRID 1274331 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+].[C:27]1(B(O)O)[C:36]2[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=2)[CH:30]=[CH:29][CH:28]=1.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:35]1[C:36]2[C:31](=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH:32]=[CH:33][CH:34]=1

Participants

9

Reactant 4

HCID 3283Diethyl EtherHCID 2545321-Naphthaleneboronic acidHCID 516892Sodium Bicarbonate2×HCID 154620775-Amino-3-cyano-4-iodo-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]pyrazole

Product 1

HCID 9955245HCID 9955245, compound

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalyst2×HCID 702EthanolSolventHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

To a rapidly stirred solution of 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-iodopyrazole (0.447 g) in toluene (2 ml) containing tetrakis(triphenylphosphine)palladium(0) (0.02 g) was added saturated aqueous sodium hydrogen carbonate solution (1 ml) and a solution of 1-naphthylboronic acid (0.344 g) in ethanol (1 ml). The mixture was heated under reflux for 3 hours, then left at room temperature overnight. Saturated aqueous sodium hydrogen carbonate solution (0.5 ml) and tetrakis(triphenylphosphine)palladium(0) (0.01 g) were added and the mixture heated under reflux for 3 hours. The cooled reaction mixture was then poured into ether (25 ml) and water (25 ml). The layers were separated and the aqueous phase extracted with a second portion of ether (25 ml). The combined organic layers were washed with water (2×25 ml), brine (25 ml) and then dried (MgSO4) 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 an off-white crystalline solid, m.p. 208° C.

Workup

  1. temperatureThe mixture was heated
  2. temperatureunder reflux for 3 hours
  3. temperaturethe mixture heated
  4. temperatureunder reflux for 3 hours
  5. customThe cooled reaction mixture
  6. customThe layers were separated
  7. extractionthe aqueous phase extracted with a second portion of ether (25 ml)
  8. washThe combined organic layers were washed with water (2×25 ml), brine (25 ml)
  9. dry with materialdried (MgSO4)
  10. customevaporated
  11. customThe residue was purified by column chromatography on silica gel (50 g)
  12. washeluted with dichloromethane
  13. customCombination and evaporation of suitable fractions

Sources & evidence

ORD record
ord-8a7b1bfc0ab64d1098ce68d8125c79f3
Source dataset
uspto-grants-2000_12
Patent number
US06156782

Reaction notes

Loading…