Sodium hydride → 2-(9-chloro-2,3,4,5-tetrahydro-3-methylazepino[4,5-b]indol-6(1H)-yl)-1-(4-methylpiperidin-1-yl)ethanone

HRID 1045595Notes

Reaction equation

HRID 1045595 reaction equation
[H-].[Na+].[Cl:3][C:4]1[CH:12]=[CH:11][C:10]2[NH:9][C:8]3[CH2:13][CH2:14][N:15]([CH3:18])[CH2:16][CH2:17][C:7]=3[C:6]=2[CH:5]=1.Cl[CH2:20][C:21]([N:23]1[CH2:28][CH2:27][CH:26]([CH3:29])[CH2:25][CH2:24]1)=[O:22]>CCCCCC.C1COCC1>[Cl:3][C:4]1[CH:12]=[CH:11][C:10]2[N:9]([CH2:20][C:21]([N:23]3[CH2:28][CH2:27][CH:26]([CH3:29])[CH2:25][CH2:24]3)=[O:22])[C:8]3[CH2:13][CH2:14][N:15]([CH3:18])[CH2:16][CH2:17][C:7]=3[C:6]=2[CH:5]=1

Participants

6

Reactant 3

HCID 24758Sodium hydrideHCID 41169262-Chloro-1-(4-methylpiperidin-1-yl)ethan-1-oneHCID 685585079-Chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole

Product 1

HCID 593684162-(9-chloro-2,3,4,5-tetrahydro-3-methylazepino[4,5-b]indol-6(1H)-yl)-1-(4-methylpiperidin-1-yl)ethanoneYield 59.1%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolvent2×HCID 8058HexaneSolvent

Procedure

The title compound was prepared by following general procedure 7. Sodium hydride (34 mg, 0.43 mmol) washed with hexane for removal of oil and dried under vacuum and taken in THF. To this solution 9-chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (0.1 g, 0.43 mmol) in THF was added dropwise at 0° C. Then the reaction mixture was stirred for 0.5 h. The solution of 2-chloro-1-(4-methylpiperidin-1-yl)ethanone (89 mg, 0.51 mmol) in THF was added dropwise in reaction mixture. Then the reaction mixture was stirred at RT for 2 h. The reaction monitored by TLC. After completion of the reaction, the reaction mixture was quenched with ice water. THF was evaporated and aqueous layer was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate. The crude compound was washed with hexane and diethyl ether for removal of color impurities then recrystallized by using methanol to gives 95 mg of desired compound, which was stirred with ethanolic HCl to give the HCl salt of 2-(9-chloro-3-methyl-2,3,4,5-tetrahydroazepino[4,5-b]indol-6(1H)-yl)-1-(4-methylpiperidin-1-yl)ethanone.

Workup

  1. customThe title compound was prepared
  2. customdried under vacuum
  3. stirringThen the reaction mixture was stirred at RT for 2 h
  4. customAfter completion of the reaction
  5. customthe reaction mixture was quenched with ice water
  6. customTHF was evaporated
  7. extractionaqueous layer was extracted with ethyl acetate
  8. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  9. washThe crude compound was washed with hexane and diethyl ether for removal of color impurities
  10. customthen recrystallized

Sources & evidence

ORD record
ord-be7f6ed2de7444c1a0e15a8f1f4f874b
Source dataset
uspto-grants-2013_10
Patent number
US08569287B2

Reaction notes

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