1-Undecyn-3-ol → 5-(6-[(3RS)-3-hydroxy-1-undecinyl]-2-pyridyl-methyl}-tetrahydrofuran-2-one

HRID 1756348Notes

Reaction equation

HRID 1756348 reaction equation
Br[C:2]1[N:7]=[C:6]([CH2:8][CH:9]2[O:13][C:12](=[O:14])[CH2:11][CH2:10]2)[CH:5]=[CH:4][CH:3]=1.[CH:15]#[C:16][CH:17]([OH:26])[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25]>C(N(CC)CC)C.O1CCCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[OH:26][CH:17]([CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[C:16]#[C:15][C:2]1[N:7]=[C:6]([CH2:8][CH:9]2[O:13][C:12](=[O:14])[CH2:11][CH2:10]2)[CH:5]=[CH:4][CH:3]=1

Participants

7

Reactant 2

HCID 2477661-Undecyn-3-olHCID 199664915-[(6-Bromo-2-pyridyl)-methyl]-tetrahydrofuran-2-one

Product 1

HCID 1317190785-(6-[(3RS)-3-hydroxy-1-undecinyl]-2-pyridyl-methyl}-tetrahydrofuran-2-oneYield 43.8%

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8028TetrahydrofuranSolventHCID 8471TriethylamineSolvent

Procedure

A solution of 500 mg of 5-[(6-bromo-2-pyridyl)-methyl]-tetrahydrofuran-2-one in 13 ml of triethylamine and 2 ml of tetrahydrofuran is mixed with 350 mg of (3RS)-1-undecin-3-ol, 37 mg of bis-(triphenylphosphine)-palladium(II) chloride and 5 mg of copper(I) iodide and the mixture is stirred for 3 days at room temperature. The reaction mixture is evaporated to dryness, distributed between water and ethyl acetate, dried on sodium sulfate, concentrated by evaporation and the residue is chromatographed on silica gel with hexane/0-35% ethyl acetate. 294 mg of 5-{6-[(3RS)-3-hydroxy-1-undecinyl]-2-pyridyl-methyl}-tetrahydrofuran-2-one is obtained as oil.

Workup

  1. customThe reaction mixture is evaporated to dryness
  2. customdried on sodium sulfate
  3. concentrationconcentrated by evaporation
  4. customthe residue is chromatographed on silica gel with hexane/0-35% ethyl acetate

Sources & evidence

ORD record
ord-dcb9b3512534494dbd02de00bcdd026e
Source dataset
uspto-grants-1995_08
Patent number
US05440044

Reaction notes

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