Potassium Iodide → rel-1-(4-Fluorophenyl)-4-[(6bR,10aS)-2,3,6b,9,10,10a-hexahydro-3-methyl-1H-pyrido[3′,4′:4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl]-1-butanone

HRID 1624927Notes

Reaction equation

HRID 1624927 reaction equation
[CH3:1][N:2]1[C:11]2[CH:10]=[CH:9][CH:8]=[C:7]3[C@H:12]4[CH:17]=[N:16][CH2:15][CH2:14][C@@H:13]4[N:5]([C:6]=23)[CH2:4][CH2:3]1.Cl[CH2:19][CH2:20][CH2:21][C:22]([C:24]1[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=1)=[O:23].C(N(CC)CC)C.[I-].[K+]>O1CCOCC1.C1(C)C=CC=CC=1>[CH3:1][N:2]1[C:11]2[CH:10]=[CH:9][CH:8]=[C:7]3[C@@H:12]4[CH2:17][N:16]([CH2:19][CH2:20][CH2:21][C:22]([C:24]5[CH:25]=[CH:26][C:27]([F:30])=[CH:28][CH:29]=5)=[O:23])[CH2:15][CH2:14][C@@H:13]4[N:5]([C:6]=23)[CH2:4][CH2:3]1

Participants

7

Reactant 4

HCID 4875Potassium IodideHCID 8471TriethylamineHCID 197503-(4-Fluorobenzoyl)propyl chlorideHCID 68591394HCID 68591394, compound

Product 1

HCID 21302490rel-1-(4-Fluorophenyl)-4-[(6bR,10aS)-2,3,6b,9,10,10a-hexahydro-3-methyl-1H-pyrido[3′,4′:4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl]-1-butanone

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 312751,4-DioxaneSolvent

Procedure

A suspension of (6bR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido-[3′,4′:4,5]-pyrrolo[1,2,3-de]quinoxaline (ca. 11.8 g, ca.50 mmol), 4-chloro-4′-fluorobutyrophenone (15.0 g, 74.8 mmol), triethylamine (30 mL, 214 mmol), and potassium iodide (12.6 g, 76 mmol) in dioxane (65 ml) and toluene (65 ml) is heated to reflux for 7 hours. After filtration and evaporation of the solvent, 200 ml of DCM is added. The DCM solution is washed with brine, dried (Na2SO4) and concentrated to approximately 55 ml. The concentrated solution is added dropwise to 600 ml of 0.5N HCl ether solution. The solid is filtered off and washed with ether and then dissolved in water. The resulting aqueous solution is basified with 2N NaOH and extracted with DCM. The DCM layers are combined, washed with brine (2×200 mL) and dried (Na2SO4). Evaporation of the solvent and chromatography of the residue over silica gel gives 4-((6bR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido-[3′,4′:4,5]-pyrrolo[1,2,3-de]quinoxalin-8-(7H)-yl)-1-(4-fluorophenyl)-1-butanone.

Workup

  1. temperatureis heated
  2. temperatureto reflux for 7 hours
  3. filtrationAfter filtration and evaporation of the solvent, 200 ml of DCM
  4. additionis added
  5. washThe DCM solution is washed with brine
  6. dry with materialdried (Na2SO4)
  7. concentrationconcentrated to approximately 55 ml
  8. additionThe concentrated solution is added dropwise to 600 ml of 0.5N HCl ether solution
  9. filtrationThe solid is filtered off
  10. washwashed with ether
  11. dissolutiondissolved in water
  12. extractionextracted with DCM
  13. washwashed with brine (2×200 mL)
  14. dry with materialdried (Na2SO4)
  15. customEvaporation of the solvent and chromatography of the residue over silica gel

Sources & evidence

ORD record
ord-8188a00443504f95b65615f6ad844d17
Source dataset
uspto-grants-2014_07
Patent number
US08779139B2

Reaction notes

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