Sodium Carbonate → (4-Tert-butyl-phenyl)-[6-(2-trifluoromethyl-phenyl)-phthalazin-1-yl]-amine

HRID 968565Notes

Reaction equation

HRID 968565 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[C:8]([NH:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]([CH3:22])([CH3:21])[CH3:20])=[CH:15][CH:14]=1)=[N:7][N:6]=[CH:5]2.[F:23][C:24]([F:35])([F:34])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=1B(O)O.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.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>[C:19]([C:16]1[CH:17]=[CH:18][C:13]([NH:12][C:8]2[C:9]3[C:4](=[CH:3][C:2]([C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=4[C:24]([F:35])([F:34])[F:23])=[CH:11][CH:10]=3)[CH:5]=[N:6][N:7]=2)=[CH:14][CH:15]=1)([CH3:22])([CH3:21])[CH3:20]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 27343872-(Trifluoromethyl)benzeneboronic acidHCID 22030046(6-Bromo-phthalazin-1-yl)-(4-tert-butyl-phenyl)-amine

Product 1

HCID 22030022(4-Tert-butyl-phenyl)-[6-(2-trifluoromethyl-phenyl)-phthalazin-1-yl]-amine

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 80711,2-DimethoxyethaneSolvent

Procedure

Combine (6-bromo-phthalazin-1-yl)-(4-tert-butyl-phenyl)-amine (60 mg, 0.19 mmol), 2-(trifluoromethyl)phenyl-boronic acid (50 mg, 0.26 mmol) in 1,2-dimethoxyethane (10 mL) and bubble nitrogen into the mixture for 10 minutes. Add tetrakis(triphenylphosphine)palladium(0) (12 mg, 0.01 mmol) and 2M Na2CO3 (1 mL) and heat at 80 C for 48 hours. Let the mixture cool to room temperature, dilute with water (10 mL), and extract twice with EtOAc (10 mL each). Dry (Na2SO4), evaporate, and purify on a preparative silica gel plate (2000 micron) eluting with 75% hexane-EtOAc to provide (4-tert-butyl-phenyl)-[6-(2-trifluoromethyl-phenyl)-phthalazin-1-yl]-amine as a straw colored solid. Mass Spec. 421.2.

Workup

  1. extractionextract twice with EtOAc (10 mL each)
  2. dry with materialDry (Na2SO4)
  3. customevaporate
  4. custompurify on a preparative silica gel plate (2000 micron)
  5. washeluting with 75% hexane-EtOAc

Sources & evidence

ORD record
ord-522a9f15de6343a5aa009cb205bc5429
Source dataset
uspto-grants-2007_12
Patent number
US07304059B2

Reaction notes

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