HuagongsheHuagongshe Chemistry Print Report · For research reference only
Propargyl alcohol → 3-(3-Pyridyl)-2-propyn-1-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Propargyl alcohol | HCID 7859 | — |
| Reactant | 3-Bromopyridine | HCID 12286 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Tris(1,1-dimethylethyl)phosphine | HCID 83681 | — |
| Catalyst | Copper iodide | HCID 83717 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 3-(3-Pyridyl)-2-propyn-1-ol | HCID 12181442 | 80% |
Reaction Steps
A solution of 3-bromopyridine (2.0 g, 12.6 mmol), propargyl alcohol (1.1 mL, 19 mmol), diisopropylethylamine (3.2 mL, 23 mmol), copper iodide (133 mg, 0.7 mmol) and tri-(t-butyl)phosphine (286 mg, 1.4 mmol) in degassed THF (10 mL) was treated with Pd(CH3CN)2Cl2 (181 mg, 0.7 mmol) at 25° C. under N2. After 18 h, the reaction mixture was filtered through celite, washed with ethyl acetate (2×100 mL), and concentrated in vacuo. Purification by flash chromatography (EtOAc) afforded the title compound (1.33 g, 80%) as a yellow oil. MS 134 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06713455B2 |
| Source dataset | uspto-grants-2004_03 |
| ORD ID | ord-d8f36336b69b40adbd809d567cbc285f |
| Source note | uspto-grants-2004_03 |