Triethylamine → HCID 19077544, compound

HRID 2256076Notes

Reaction equation

HRID 2256076 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][C:11]([OH:14])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.[C:15]([C:17]1([OH:25])[CH:22]2[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]2)[CH2:18]1)#[CH:16].C(N(CC)CC)C>CN(C)C=O.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl.[Cu]I>[OH:14][C:11]1[CH:12]=[CH:13][C:8]([C:5]2[CH:6]=[CH:7][C:2]([C:16]#[C:15][C:17]3([OH:25])[CH:22]4[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]4)[CH2:18]3)=[CH:3][CH:4]=2)=[CH:9][CH:10]=1

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 950934-Bromo-4'-hydroxybiphenylHCID 36135173-Ethynyl-1-azabicyclo[2.2.2]octan-3-ol

Product 1

HCID 19077544HCID 19077544, compoundYield 23%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6102075Dichlorobis(triphenylphosphine)palladiumCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
70 °C

Procedure

A mixture of 4-bromo-4'-hydroxybiphenyl (747 mg), 3-ethynyl-3-hydroxyquinuclidine (453 mg), bis(triphenylphosphine)-palladium (II) chloride (105 mg), copper (I) iodide (55 mg) and dry triethylamine (5.0 ml) in dry dimethylformamide (10 ml) was stirred at 70° C. under an atmosphere of argon for 4 hours. The reaction mixture was cooled and the dimethylformamide and triethylamine were removed by evaporation. The residue was purified by flash column chromatography on alumina (ICN--Alumina N32-63) using a gradient of 10% methanol in ethyl acetate to 20% methanol in ethyl acetate as eluent to give 3-[(4'-hydroxybiphenyl-4-yl)ethynyl]quinuclidin-3-ol (220 mg) as a solid, m.p. 230°-233° C.; microanalysis, found C, 76.7; H, 6.6, N, 4.4%; C21H21NO2.0.5H2O requires C, 76.8; H, 6.7; N, 4.26%; NMR (DMSO-d6): 1.2-1.42(1H, m), 1.5-1.72(1H, m), 1.8-2.0(3H, m), 2.65-2.8(4H, t), 2.8-3.2(2H, d of d), 5.6-5.7(1H, br), 6.8-6.9(2H, d) and 7.48-7.63(6H, m); m/z 320 (M+H).

Workup

  1. temperatureThe reaction mixture was cooled
  2. customthe dimethylformamide and triethylamine were removed by evaporation
  3. customThe residue was purified by flash column chromatography on alumina (ICN--Alumina N32-63)

Sources & evidence

ORD record
ord-16318719ee4b4cfd889f2a1175b1751b
Source dataset
uspto-grants-1997_08
Patent number
US05654315

Reaction notes

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