1-Ethynylcyclohexanol → 4-{1-Ethyl-1-[4-(1-hydroxy-cyclohexylethynyl)-3-methyl-phenyl]-propyl}-2-methyl-phenol

HRID 546865Notes

Reaction equation

C(N(CC)CC)C.[CH2:8]([C:10]([C:21]1[CH:26]=[CH:25][C:24](OS(C(F)(F)F)(=O)=O)=[C:23]([CH3:35])[CH:22]=1)([C:13]1[CH:18]=[CH:17][C:16]([OH:19])=[C:15]([CH3:20])[CH:14]=1)[CH2:11][CH3:12])[CH3:9].[C:36]([C:38]1([OH:44])[CH2:43][CH2:42][CH2:41][CH2:40][CH2:39]1)#[CH:37]>C(#N)C>[CH2:8]([C:10]([C:13]1[CH:18]=[CH:17][C:16]([OH:19])=[C:15]([CH3:20])[CH:14]=1)([C:21]1[CH:26]=[CH:25][C:24]([C:37]#[C:36][C:38]2([OH:44])[CH2:43][CH2:42][CH2:41][CH2:40][CH2:39]2)=[C:23]([CH3:35])[CH:22]=1)[CH2:11][CH3:12])[CH3:9]

Participants

Conditions

Temperature: 110 °C

Procedure

Triethylamine (8.0 mL, 57.6 mmol), tetrakistriphenylphosphine palladium (2.2 g, 1.92 mmol) and cuprous iodide (0.36 g, 1.92 mmol) were added to a solution of trifluoromethanesulfonic acid 4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenyl ester (Example 1-(1); 8.0 g, 19.2 mmol) and 1-ethynyl-cyclohexanol (3.5 g, 28.8 mmol) in acetonitrile (96 mL), and the mixture was stirred at 110° C. for 1.5 hours. The reaction mixture was extracted with ethyl acetate. The organic layer was washed with water and then dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel chromatography (hexane/ethyl acetate=4/1) to give the title compound (4.75 g, 63%).

Workup

extractionThe reaction mixture was extracted with ethyl acetate
washThe organic layer was washed with water
dry with materialdried over anhydrous sodium sulfate
concentrationconcentrated under reduced pressure
customThe residue was purified by silica gel chromatography (hexane/ethyl acetate=4/1)

Sources & evidence

ORD record: ord-f715c8bfc543423595a8c0a298881547
Source dataset: uspto-grants-2011_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07935688B2

Reaction notes

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