Water → HCID 57941311, compound

HRID 1438012Notes

Reaction equation

HRID 1438012 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:17](=[O:18])[C:16]2[C@@H:15]3[C:19]([CH3:21])([CH3:20])[C@@:12]([CH3:22])([CH2:13][CH2:14]3)[C:11]=2[NH:10]1.[F:23][C:24]1[CH:31]=[CH:30][C:27]([CH2:28]Br)=[CH:26][CH:25]=1.ClCCl.O>[I-].C([N+](CCCC)(CCCC)CCCC)CCC.CN(C)C=O.[Cl-].[Na+].O>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:17](=[O:18])[C:16]2[C@@H:15]3[C:19]([CH3:21])([CH3:20])[C@@:12]([CH3:22])([CH2:13][CH2:14]3)[C:11]=2[N:10]1[CH2:28][C:27]1[CH:30]=[CH:31][C:24]([F:23])=[CH:25][CH:26]=1

Participants

8

Reactant 4

HCID 962WaterHCID 6344DichloromethaneHCID 680214-Fluorobenzyl bromideHCID 57941339(4s,7r)-2-(2,4-Difluoro-phenyl)-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one2×

Product 1

HCID 57941311HCID 57941311, compoundYield 78%

Reagents, catalysts & solvents 3

HCID 67553Tetrabutylammonium IodideCatalystHCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of (4S,7R)-2-(2,4-difluoro-phenyl)-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (Intermediate 14; 100 mg, 0.33 mmol), tetrabutylammonium iodide (85 mg, 0.23 mmol) and 4-fluoro-benzyl bromide (164 μL, 1.3 mmol) in dimethylformamide (2 mL) was heated at 100° C. overnight. Dichloromethane (50 mL) and a mixture of water (10 mL) and brine (10 mL) were added. The organic layer was washed with 10% aqueous sodium thiosulfate (20 mL), and brine (20 mL). The solution was dried (magnesium sulfate), filtered, evaporated, and purified by column chromatography, eluting with 50-60% ethyl acetate/petroleum ether, to give (4S,7R)-2-(2,4-difluoro-phenyl)-1-(4-fluoro-benzyl)-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (105 mg, 78%) as an off-white solid. ES(+)-MS (M+H) 413.

Workup

  1. additionwere added
  2. washThe organic layer was washed with 10% aqueous sodium thiosulfate (20 mL), and brine (20 mL)
  3. dry with materialThe solution was dried (magnesium sulfate)
  4. filtrationfiltered
  5. customevaporated
  6. custompurified by column chromatography
  7. washeluting with 50-60% ethyl acetate/petroleum ether

Sources & evidence

ORD record
ord-5639c4fc411e4b18b6429043bb0e2d2f
Source dataset
uspto-grants-2009_11
Patent number
US07622492B2

Reaction notes

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