Triethylamine → HCID 70925668, compound

HRID 1851655Notes

Reaction equation

HRID 1851655 reaction equation
I[C:2]1[CH:3]=[CH:4][C:5]([CH:8]2[CH2:12][C:11]([CH3:14])([CH3:13])[N:10]([CH3:15])[C:9]2=[O:16])=[N:6][CH:7]=1.[C:17]([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)#[CH:18].C(N(CC)CC)C>C1COCC1.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.[Cu]I.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[CH3:15][N:10]1[C:11]([CH3:14])([CH3:13])[CH2:12][CH:8]([C:5]2[CH:4]=[CH:3][C:2]([C:18]#[C:17][C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)=[CH:7][N:6]=2)[C:9]1=[O:16]

Participants

8

Reactant 3

HCID 8471TriethylamineHCID 10821PhenylacetyleneHCID 70925591HCID 70925591, compound

Product 1

HCID 70925668HCID 70925668, compoundYield 80.6%

Reagents, catalysts & solvents 4

HCID 11776TriphenylphosphineCatalystHCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6102075Dichlorobis(triphenylphosphine)palladiumCatalystHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
60 °C

Procedure

A solution of (RS)-3-(5-iodopyridin-2-yl)-1,5,5-trimethylpyrrolidin-2-one (140 mg, 0.42 mmol), ethynylbenzene (65.0 mg, 69.9 μl, 0.64 mmol), triethylamine (129 mg, 177 μl, 1.27 mmol), bis(triphenylphosphine)palladium (II) chloride (17.9 mg, 25.4 μmol) and triphenylphosphine (3.34 mg, 12.7 μmol) in 4 ml of THF was purged with argon. Then copper (I) iodide (2.42 mg, 12.7 μmol) was added and the reaction was heated for 3 h at 60° C. After extraction with ethyl acetate/water, drying over sodium sulfate and concentration; the residue was taken up in ethyl acetate, adsorbed onto 3 g of silicagel which was loaded onto a 20 g prepacked flash chromato-graphy column. After elution with a 0% to 65% ethyl acetate in heptane gradient, the fractions containing the desired product were collected to yield 103 mg (72%) of the title compound as an amorphous yellow solid, MS: m/e=305.2 (M+H+).

Workup

  1. extractionAfter extraction with ethyl acetate/water
  2. dry with materialdrying over sodium sulfate and concentration
  3. washAfter elution with a 0% to 65% ethyl acetate in heptane gradient
  4. additionthe fractions containing the desired product
  5. customwere collected

Sources & evidence

ORD record
ord-885654e5808d47788bcdba3e64b4ade9
Source dataset
uspto-grants-2015_02
Patent number
US08957213B2

Reaction notes

Loading…