Triethylamine → methyl (E)-[4-[3-(4-fluorophenyl)-3-[4-[(pyridin-2-yl)ethynyl]phenyl]allyloxy]-2-methylphenoxy]acetate

HRID 1039452Notes

Reaction equation

HRID 1039452 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:25]2[CH:30]=[CH:29][C:28](I)=[CH:27][CH:26]=2)=[CH:9]/[CH2:10][O:11][C:12]2[CH:23]=[CH:22][C:15]([O:16][CH2:17][C:18]([O:20][CH3:21])=[O:19])=[C:14]([CH3:24])[CH:13]=2)=[CH:4][CH:3]=1.C(N(CC)CC)C.[C:39]([C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1)#[CH:40]>O1CCCC1.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:25]2[CH:30]=[CH:29][C:28]([C:40]#[C:39][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=3)=[CH:27][CH:26]=2)=[CH:9]/[CH2:10][O:11][C:12]2[CH:23]=[CH:22][C:15]([O:16][CH2:17][C:18]([O:20][CH3:21])=[O:19])=[C:14]([CH3:24])[CH:13]=2)=[CH:4][CH:3]=1

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 137268EthynylpyridineHCID 86629282Methyl (Z)-[4-[3-(4-Fluorophenyl)-3-(4-iodophenyl)allyloxy]-2-methylphenoxy]acetate

Product 1

HCID 86629283methyl (E)-[4-[3-(4-fluorophenyl)-3-[4-[(pyridin-2-yl)ethynyl]phenyl]allyloxy]-2-methylphenoxy]acetate

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 8028TetrahydrofuranSolvent2×

Procedure

Methyl (Z)-[4-[3-(4-fluorophenyl)-3-(4-iodophenyl)allyloxy]-2-methylphenoxy]acetate (400 mg, 0.75 mmol; example 10) was dissolved in anhydrous tetrahydrofuran (10 mL). Anhydrous triethylamine (20 mL) and a solution of 2-ethynylpyridine (155 mg, 1.50 mmol) in anhydrous tetrahydrofuran (2 mL) were added. The solution was degassed and copper(I) iodide (23 mg, 0.12 mmol) and tetrakis(triphenylphosphine)palladium (70 mg, 0.06 mmol) were added. A mixture was stirred at ambient temperature under nitrogen atmosphere overnight; the resulting suspension was filtered through a paddle of silica gel and silica gel was thoroughly washed with ethyl acetate. The obtained filtrate was evaporated in vacuo and the residue was dissolved in ethyl acetate (50 mL). The solution was washed with water (2×30 mL) and brine (2×30 mL), dried over anhydrous magnesium sulfate and evaporated in vacuo. The residue was purified using column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 90:10) yielding methyl (E)-[4-[3-(4-fluorophenyl)-3-[4-[(pyridin-2-yl)ethynyl]phenyl]allyloxy]-2-methylphenoxy]acetate as orange oil.

Workup

  1. customThe solution was degassed
  2. filtrationthe resulting suspension was filtered through a paddle of silica gel and silica gel
  3. washwas thoroughly washed with ethyl acetate
  4. customThe obtained filtrate was evaporated in vacuo
  5. dissolutionthe residue was dissolved in ethyl acetate (50 mL)
  6. washThe solution was washed with water (2×30 mL) and brine (2×30 mL)
  7. dry with materialdried over anhydrous magnesium sulfate
  8. customevaporated in vacuo
  9. customThe residue was purified

Sources & evidence

ORD record
ord-cae7b4625525460b8993f089b8849f7c
Source dataset
uspto-grants-2013_10
Patent number
US08551993B2

Reaction notes

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