N-methyl-2-pyrrolidone → HCID 67773022, compound

HRID 533410Notes

Reaction equation

HRID 533410 reaction equation
Br[C:2]1[C:11]2[C:6](=[CH:7][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:9][CH:10]=2)[C:5]([C:16]2[C:21]([F:22])=[CH:20][C:19]([F:23])=[CH:18][C:17]=2[F:24])=[N:4][CH:3]=1.[CH3:25][N:26]1CCCC1=O>O.C(OCC)(=O)C.[C-]#N.[Zn+2].[C-]#N.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[C:25]([C:2]1[C:11]2[C:6](=[CH:7][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:9][CH:10]=2)[C:5]([C:16]2[C:21]([F:22])=[CH:20][C:19]([F:23])=[CH:18][C:17]=2[F:24])=[N:4][CH:3]=1)#[N:26]

Participants

8

Reactant 2

HCID 13387N-methyl-2-pyrrolidoneHCID 67773046HCID 67773046, compound

Product 1

HCID 67773022HCID 67773022, compound

Reagents, catalysts & solvents 5

HCID 11186Zinc cyanide (Zn(CN)2)CatalystHCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)CatalystHCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of methyl 4-bromo-1-(2,4,6-trifluorophenyl)isoquinoline-7-carboxylate (66 mg), zinc cyanide (content 60%, 21 mg), tris(dibenzylideneacetone)dipalladium (0) (14 mg), 1,1′-bis(diphenylphosphino)ferrocene (17 mg), and N-methyl-2-pyrrolidone (3 mL) was heated under stirring in an oil bath at 150° C. for 3 hours. The reaction mixture was returned to room temperature, diluted with water and ethyl acetate, and then the insoluble materials were separated by filtration. The filtrate was subjected to liquid separation, and the organic layer was concentrated under reduced pressure. Then, the resulting residue was purified under silica gel column chromatography (hexane/ethyl acetate) to obtain methyl 4-cyano-1-(2,4,6-trifluorophenyl)isoquinoline-7-carboxylate (44 mg).

Workup

  1. temperaturewas heated
  2. customwas returned to room temperature
  3. customthe insoluble materials were separated by filtration
  4. customThe filtrate was subjected to liquid separation
  5. concentrationthe organic layer was concentrated under reduced pressure
  6. customThen, the resulting residue was purified under silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-6d76428dd7bc4872aef83e93bf47bf74
Source dataset
uspto-grants-2014_10
Patent number
US08853242B2

Reaction notes

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