HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Propargyl alcohol → 3-(3,4-Dimethylphenyl)prop-2-yn-1-ol
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Propargyl alcohol | HCID 7859 | — |
| Edukt | Triphenylphosphine | HCID 11776 | — |
| Edukt | Diisopropylethylamine | HCID 81531 | — |
| Edukt | 4-Iodo-1,2-dimethylbenzene | HCID 141646 | — |
| Katalysator | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Katalysator | Palladium, tris[mu-[(1,2-eta:4,5-eta)-(1E,4E)-1,5-diphenyl-1,4-pentadien-3-one]]di-, compd. with trichloromethane (1:1) | HCID 11029508 | — |
| Lösungsmittel | Tetrahydrofuran | HCID 8028 | — |
| Lösungsmittel | Sodium chloride; water | HCID 57417360 | — |
| Produkt | 3-(3,4-Dimethylphenyl)prop-2-yn-1-ol | HCID 59407882 | — |
Reaktionsschritte
A mixture of 1-iodo-3,4-dimethylbenzene (5.00 g), copper(I) iodide (82.1 mg), triphenylphosphine (283 mg), tris(dibenzylideneacetone)dipalladium(0) chloroform adduct (446 mg), propargyl alcohol (1.40 ml), diisopropylethylamine (15.0 ml) and tetrahydrofuran (100 ml) was stirred at room temperature for 5 hr. The reaction mixture was added to brine, and the mixture was extracted with ethyl acetate, washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=98:2-80:20) to give the object product (2.12 g) as a brown oil.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08129361B2 |
| Quelldatensatz | uspto-grants-2012_03 |
| ORD ID | ord-e04b7e576a904494bbcc5604a3468587 |
| Quellennotiz | uspto-grants-2012_03 |