Water → HCID 178437897, compound

HRID 411567Notes

Reaction equation

HRID 411567 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[C:4]([Cl:9])[C:3]=1[N:10]1[C:14]2=[N:15][C:16]([CH2:20][C:21]3[CH:26]=[CH:25][C:24](Br)=[CH:23][CH:22]=3)=[N:17][C:18](=[O:19])[C:13]2=[C:12]([CH2:28][CH3:29])[NH:11]1.[CH3:30][O:31][C:32]1[CH:37]=[CH:36][C:35](B(O)O)=[CH:34][CH:33]=1.C([O-])([O-])=O.[Na+].[Na+].O>C1(C)C=CC=CC=1.CCO.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>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[C:4]([Cl:9])[C:3]=1[N:10]1[C:14]2=[N:15][C:16]([CH2:20][C:21]3[CH:26]=[CH:25][C:24]([C:35]4[CH:36]=[CH:37][C:32]([O:31][CH3:30])=[CH:33][CH:34]=4)=[CH:23][CH:22]=3)=[N:17][C:18](=[O:19])[C:13]2=[C:12]([CH2:28][CH3:29])[NH:11]1

Participants

8

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 201262(4-Methoxyphenyl)boronic acidHCID 178437896HCID 178437896, compound

Product 1

HCID 178437897HCID 178437897, compoundYield 59.3%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 1140TolueneSolvent

Procedure

To a stirred mixture of 100 mg (0.2 mmol) of 1-(2,4,6-trichlorophenyl)-3-ethyl-6-(4-bromobenzyl)pyrazolo[3,4-d]pyrimidin-4-one and 38 mg (0.25 mmol) of 4-methoxyphenylboronic acid in 10 mL of toluene, 0.5 mL of EtOH, and 2 mL of 2 M Na2CO3 was added to 5 mg of Pd(Ph3P)4. The mixture was heated to reflux overnight, poured into water, and extracted with CHCl3. The organic extract was dried (MgSO4), filtered through celite, chromatographed (elution with 5% MeOH/CH2Cl2), and recrystallized to afford 64 mg (59%) of 1-(2,4,6-trichlorophenyl)-3-ethyl-6-(4-(4-methoxyphenyl)benzyl) pyrazolo[3,4-d]pyrimidin-4-one as a pale brown powder, mp 275-277° C., Mass spec.: 537 (M−H)−.

Workup

  1. temperatureThe mixture was heated
  2. temperatureto reflux overnight
  3. extractionextracted with CHCl3
  4. extractionThe organic extract
  5. dry with materialwas dried (MgSO4)
  6. filtrationfiltered through celite
  7. customchromatographed
  8. wash(elution with 5% MeOH/CH2Cl2)
  9. customrecrystallized

Sources & evidence

ORD record
ord-342b46992e6046feb2ef9300f4ef750b
Source dataset
uspto-grants-2003_05
Patent number
US06559152B2

Reaction notes

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