Potassium Carbonate → 2-[2-(1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-7-yl)ethoxy]quinoline

HRID 2268509Notes

Reaction equation

HRID 2268509 reaction equation
I[CH2:2][CH2:3][CH:4]1[CH2:10][CH2:9][C:8]2[C:11]([O:21][CH3:22])=[C:12]([O:19][CH3:20])[C:13]([O:17][CH3:18])=[C:14]([O:15][CH3:16])[C:7]=2[CH2:6][CH2:5]1.[N:23]1[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[CH:26]=[CH:25][C:24]=1[OH:33].C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[CH3:16][O:15][C:14]1[C:7]2[CH2:6][CH2:5][CH:4]([CH2:3][CH2:2][O:33][C:24]3[CH:25]=[CH:26][C:27]4[C:32](=[CH:31][CH:30]=[CH:29][CH:28]=4)[N:23]=3)[CH2:10][CH2:9][C:8]=2[C:11]([O:21][CH3:22])=[C:12]([O:19][CH3:20])[C:13]=1[O:17][CH3:18]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 183485187-(2-Iodoethyl)-1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepteneHCID 178515546HCID 178515546, compound

Product 1

HCID 183485112-[2-(1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-7-yl)ethoxy]quinolineYield 43.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 7-(2-iodoethyl)-1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cycloheptene (1.50 g), 2-quinolinol (621 mg), and potassium carbonate (987 mg) in DMF (15 ml) was stirred at room temperature for 12 hr. After being stirred at 60° C. for 6 hr, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride and dried. The solvent was removed in vacuo. The residue was diluted with dilsopropylether. The crystals were collected by filtration and recrystallized from hexane-ethyl acetate to obtain 2-[2-(1,2,3,4-tetramethoxy-6,7,8,9-tetrahydro-5H-benzo[a]cyclohepten-7-yl)ethoxy]quinoline (680 mg).

Workup

  1. stirringAfter being stirred at 60° C. for 6 hr
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. customdried
  5. customThe solvent was removed in vacuo
  6. additionThe residue was diluted with dilsopropylether
  7. filtrationThe crystals were collected by filtration
  8. customrecrystallized from hexane-ethyl acetate

Sources & evidence

ORD record
ord-5252f734067a47a59f3f74470a9c1863
Source dataset
uspto-grants-2001_12
Patent number
US06326369B1

Reaction notes

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