Potassium Carbonate → (1,4-Dichloro-phthalazin-6-yl)-(3-trifluoromethyl-benzyl)-amine

HRID 1667405Notes

Reaction equation

HRID 1667405 reaction equation
[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][C:8]([NH2:12])=[CH:9][CH:10]=2)[C:5]([Cl:13])=[N:4][N:3]=1.C([O-])([O-])=O.[K+].[K+].[F:20][C:21]([F:31])([F:30])[C:22]1[CH:23]=[C:24]([CH:27]=[CH:28][CH:29]=1)[CH2:25]Br>CN(C=O)C>[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][C:8]([NH:12][CH2:25][C:24]3[CH:27]=[CH:28][CH:29]=[C:22]([C:21]([F:20])([F:30])[F:31])[CH:23]=3)=[CH:9][CH:10]=2)[C:5]([Cl:13])=[N:4][N:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 1230611-(Bromomethyl)-3-(trifluoromethyl)benzeneHCID 584472211,4-Dichlorophthalazin-6-amine

Product 1

HCID 86620966(1,4-Dichloro-phthalazin-6-yl)-(3-trifluoromethyl-benzyl)-amineYield 26.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
85 °C

Procedure

A mixture of 1,4-dichloro-6-amino-phthalazine (33 mg, 0.154 mmol), K2CO3 (79 mg, 0.57 mmol), DMF (5 mL) and 3-(trifluoromethyl)benzyl bromide (2.0 mL, 0.17 mmol) were heated to 85° C. for 18 h. The reaction was cooled, poured onto water and extracted with EtOAc. The combined organic layers were washed with H2O, brine, dried (Na2SO4) and concentrated. Column chromatography (Hexanes/EtOAc) afforded the desired product (15 mg, 26.3%) as a yellow solid. m/z 372.08 (M+1).

Workup

  1. temperatureThe reaction was cooled
  2. additionpoured onto water
  3. extractionextracted with EtOAc
  4. washThe combined organic layers were washed with H2O, brine
  5. dry with materialdried (Na2SO4)
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-bfe57511d1a941819d0591d30f326750
Source dataset
uspto-grants-2011_10
Patent number
US08044041B2

Reaction notes

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