Cesium fluoride → ethyl 3-(3-hydroxypropyl)-7-(2-methoxyphenyl)-1H-indole-2-carboxylate

HRID 576243Notes

Reaction equation

HRID 576243 reaction equation
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:10]=1[NH:9][C:8]([C:11]([O:13][CH2:14][CH3:15])=[O:12])=[C:7]2[CH2:16][CH2:17][CH2:18][OH:19].[CH3:20][O:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1B(O)O.F[B-](F)(F)F.C(P(C(C)(C)C)C(C)(C)C)(C)(C)C.[F-].[Cs+]>C1COCC1.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]>[OH:19][CH2:18][CH2:17][CH2:16][C:7]1[C:6]2[C:10](=[C:2]([C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=3[O:21][CH3:20])[CH:3]=[CH:4][CH:5]=2)[NH:9][C:8]=1[C:11]([O:13][CH2:14][CH3:15])=[O:12]

Participants

8

Reactant 4

HCID 25953Cesium fluorideHCID 27339582-Methoxyphenylboronic acidHCID 44558591Tri-t-butylphosphine fluoroborateHCID 68943187ethyl 7-bromo-3-(3-hydroxypropyl)-1H-indole-2-carboxylate

Product 1

HCID 68940496ethyl 3-(3-hydroxypropyl)-7-(2-methoxyphenyl)-1H-indole-2-carboxylate

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of EXAMPLE 1B (456 mg) and 2-methoxyphenylboronic acid (182.4 mg) in THF (10 mL), tris(dibenzylideneacetone)dipalladium(0) (46 mg), tri-tert-butylphosphine tetrafluoroborate (15 mg) and CsF (456 mg) was stirred at ambient temperature, diluted with ethyl acetate (200 mL), washed with water and brine, and dried (Na2SO4), filtered and concentrated. The concentrate was purified by flash column chromatography on silica gel with 20% ethyl acetate in hexanes.

Workup

  1. washwashed with water and brine
  2. dry with materialdried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe concentrate was purified by flash column chromatography on silica gel with 20% ethyl acetate in hexanes

Sources & evidence

ORD record
ord-fe2d1e1457fe48b79c161aaf24ede026
Source dataset
uspto-grants-2015_05
Patent number
US09035047B2

Reaction notes

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