Water → 2-Methyl-2-[(4-{2-[4-(phenylethynyl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid methyl ester

HRID 914333Notes

Reaction equation

HRID 914333 reaction equation
[CH3:1][O:2][C:3](=[O:23])[C:4]([S:7][C:8]1[S:9][CH:10]=[C:11]([CH2:13][CH2:14][O:15][C:16]2[CH:21]=[CH:20][C:19](I)=[CH:18][CH:17]=2)[N:12]=1)([CH3:6])[CH3:5].[C:24]([C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)#[CH:25].O>CN(C)C=O.C(N(CC)CC)C.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>[CH3:1][O:2][C:3](=[O:23])[C:4]([CH3:6])([S:7][C:8]1[S:9][CH:10]=[C:11]([CH2:13][CH2:14][O:15][C:16]2[CH:21]=[CH:20][C:19]([C:25]#[C:24][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[CH:18][CH:17]=2)[N:12]=1)[CH3:5]

Participants

8

Reactant 3

HCID 962WaterHCID 10821PhenylacetyleneHCID 597593322-({4-[2-(4-Iodophenoxy)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid methyl ester

Product 1

HCID 597592082-Methyl-2-[(4-{2-[4-(phenylethynyl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid methyl esterYield 70.6%

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Conditions

Temperature
60 °C

Procedure

Under nitrogen atmosphere, 2-({4-[2-(4-iodophenoxy)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid methyl ester (600 mg) synthesized in Example 144-2 and ethynylbenzene (145 mg) were dissolved in N,N-dimethylformamide (2 mL) and triethylamine (6 mL), dichlorobis(triphenylphosphine)palladium (10 mg) and copper(I) iodide (5 mg) were added, and the mixture was stirred at 60° C. for 1 hr. The reaction mixture was cooled, water was added thereto, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=5:1) to give the title compound (400 mg) as a yellow oil.

Workup

  1. temperatureThe reaction mixture was cooled
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=5:1)

Sources & evidence

ORD record
ord-f3acbdde4e3241a48f7c5edec2419659
Source dataset
uspto-grants-2011_09
Patent number
US08026370B2

Reaction notes

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