Piperidine → Ethyl 1-(3-(naphthalen-1-yloxy)propyl)-3-(piperidin-1-yl)-1h-indole-2-carboxylate

HRID 533249Notes

Reaction equation

HRID 533249 reaction equation
Br[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[N:4]([CH2:11][CH2:12][CH2:13][O:14][C:15]2[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[CH:18]=[CH:17][CH:16]=2)[C:3]=1[C:25]([O:27][CH2:28][CH3:29])=[O:26].[NH:30]1[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]1.C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C([O-])([O-])=O.[Cs+].[Cs+]>C1(C)C=CC=CC=1.C(OCC)(=O)C.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]>[C:15]1([O:14][CH2:13][CH2:12][CH2:11][N:4]2[C:5]3[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=3)[C:2]([N:30]3[CH2:35][CH2:34][CH2:33][CH2:32][CH2:31]3)=[C:3]2[C:25]([O:27][CH2:28][CH3:29])=[O:26])[C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH:18]=[CH:17][CH:16]=1

Participants

8

Reactant 4

HCID 8082PiperidineHCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 67316935Ethyl 3-bromo-1-(3-(naphthalen-1-yloxy)propyl)-1h-indole-2-carboxylate

Product 1

HCID 67316989Ethyl 1-(3-(naphthalen-1-yloxy)propyl)-3-(piperidin-1-yl)-1h-indole-2-carboxylate

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of EXAMPLE 31C (100 mg), piperidine (57 mg), tris(dibenzylideneacetone)dipalladium(0) (20 mg), 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (26 mg) and Cs2CO3 (216 mg) in toluene (2 mL) was heated at 100° C. for 48 hours. The mixture was diluted with ethyl acetate and was washed with water and brine. The organic phase was dried (Na2SO4) filtered, and concentrated. The concentrate was purified by flash chromatography on silica gel with 0-10% ethyl acetate/hexanes.

Workup

  1. washwas washed with water and brine
  2. dry with materialThe organic phase was dried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe concentrate was purified by flash chromatography on silica gel with 0-10% ethyl acetate/hexanes

Sources & evidence

ORD record
ord-967cbbe7d3394feaae49e0da53e88c12
Source dataset
uspto-grants-2014_10
Patent number
US08853209B2

Reaction notes

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