5-Chloro-1-[1-[2-(indan-2-yl)ethyl]-1,2,3,6-tetrahydropyridin-4-yl]-1H-indole → 5-Chloro-1-[1-[2-(indan-2-yl)ethyl]piperidin-4-yl]-1H-indole

HRID 1267163Notes

Reaction equation

HRID 1267163 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([C:11]1[CH2:12][CH2:13][N:14]([CH2:17][CH2:18][CH:19]3[CH2:27][C:26]4[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=4)[CH2:20]3)[CH2:15][CH:16]=1)[CH:6]=[CH:5]2.[H][H]>[Pt]=O.C(O)(=O)C>[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH:11]1[CH2:12][CH2:13][N:14]([CH2:17][CH2:18][CH:19]3[CH2:27][C:26]4[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=4)[CH2:20]3)[CH2:15][CH2:16]1)[CH:6]=[CH:5]2

Participants

5

Reactant 2

HCID 185458365-Chloro-1-[1-[2-(indan-2-yl)ethyl]-1,2,3,6-tetrahydropyridin-4-yl]-1H-indole2×HCID 178418361HCID 178418361, compound

Product 1

HCID 185458415-Chloro-1-[1-[2-(indan-2-yl)ethyl]piperidin-4-yl]-1H-indole

Reagents, catalysts & solvents 2

HCID 82844Platinum oxide (PtO)CatalystHCID 176Acetic AcidSolvent

Procedure

A mixture of 5-Chloro-1-[1-[2-(indan-2-yl)ethyl]-1,2,3,6-tetrahydropyridin-4-yl]-1H-indole. 28a. (1.9 g), acetic acid (50 ml), and platinum oxide (0.1 g) was shaken for 3 h under 3 atm. hydrogen pressure. The mixture was filtered and evaporated in vacuo. The residue was dissolved in ethyl acetate and the organic phase was shaken with dilute ammonium hydroxide and then worked up in a conventional manner. Further purification was done on silica gel eluted with ethyl acetate-heptane (1:1) to give 2.0 g of crude product. The crude product was crystallized (ethyl acetate), and the title compound was collected by filtration (1.1 g, 58%).

Workup

  1. filtrationThe mixture was filtered
  2. customevaporated in vacuo
  3. dissolutionThe residue was dissolved in ethyl acetate
  4. customFurther purification
  5. washeluted with ethyl acetate-heptane (1:1)

Sources & evidence

ORD record
ord-ee136bb019b346959e90ef7a167379a8
Source dataset
uspto-grants-2003_04
Patent number
US06552044B2

Reaction notes

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