Triethylamine → HCID 66776559, compound

HRID 2367907Notes

Reaction equation

HRID 2367907 reaction equation
I[C:2]1[CH:7]=[CH:6][C:5]([C:8]#[C:9][Si:10]([CH3:13])([CH3:12])[CH3:11])=[CH:4][CH:3]=1.[CH2:14]([C:18]1[CH:23]=[CH:22][C:21]([C:24]#[CH:25])=[CH:20][CH:19]=1)[CH2:15][CH2:16][CH3:17].C(N(CC)CC)C>[Cu]I.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.C1COCC1>[CH3:11][Si:10]([C:9]#[C:8][C:5]1[CH:6]=[CH:7][C:2]([C:25]#[C:24][C:21]2[CH:22]=[CH:23][C:18]([CH2:14][CH2:15][CH2:16][CH3:17])=[CH:19][CH:20]=2)=[CH:3][CH:4]=1)([CH3:13])[CH3:12]

Participants

7

Reactant 3

HCID 8471TriethylamineHCID 27751321-Butyl-4-ethynylbenzeneHCID 11808725(4-Iodophenylethynyl)trimethylsilane

Product 1

HCID 66776559HCID 66776559, compoundYield 40%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6102075Dichlorobis(triphenylphosphine)palladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

4-iodophenytrimethyl silylacetylene (5.0 g, 16.6 mmol), 4-n-butylphenylacetylene (2.67 g, 16.0 mmol), CuI (32 mg, 0.16 mmol), bis(triphenylphosphine)palladium(II)dichloride (0.35 g, 0.48 mmol), triethylamine (50 mL) and THF (50 mL) were added together and stirred at ambient temperature under N2 for 18 h. The reaction mixture was filtered to remove solids and concentrated to dryness, redissolved in CHCl3, washed with water (2×), brine, dried with MgSO4, filtered, concentrated and the solid recrystallized from hexanes to give 2.10 g (40%) product. The crude product could also be purified by washing with MeOH. This gave 1.94 g additional product for a total yield of 79%. 1H NMR (CDCl3) δ: 7.46 (m, 6H), 7.20 (d, J=8.11 Hz, 2H); 2.63 (t, J=7.6 Hz, 2H); 1.62 (m, 2H); 1.38 (m, 2H); 0.95 (t, J=7.2 Hz, 3H); 0.28 (s, 9H). 13C {1H} NMR (CDCl3): 143.7, 131.9, 131.6, 131.3, 128.5, 123.6, 122.7, 120.1, 104.7, 96.1, 91.6, 88.4, 35.6, 33.4, 22.3, 14.0, −0.1 ppm.

Workup

  1. filtrationThe reaction mixture was filtered
  2. customto remove solids
  3. concentrationconcentrated to dryness
  4. dissolutionredissolved in CHCl3
  5. washwashed with water (2×), brine
  6. dry with materialdried with MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customthe solid recrystallized from hexanes

Sources & evidence

ORD record
ord-5707ee5632434b2cb5db4a0a09f6cf66
Source dataset
uspto-grants-2014_04
Patent number
US08703388B2

Reaction notes

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