HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → N-BOC-4-(phenylethynyl)piperidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Iodobenzene | HCID 11575 | — |
| Reactant | tert-Butyl 4-ethynylpiperidine-1-carboxylate | HCID 15550481 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | N-BOC-4-(phenylethynyl)piperidine | HCID 17986993 | 25.9% |
Reaction Steps
Iodobenzene (135 μl, 1.2 mmols), 4-ethynyl-piperidine-1-carboxylic acid tert-butyl ester (209 mg, 1 mmols) and triethylamine (167 μl, 1.2 mmols) were dissolved in acetonitrile (6 ml). Dichlorobis(triphenylphosphine)palladium(II) (35 mg, 0.05 mmols) and CuI (10 mg, 0.05 mmols) were added, and reaction mixture was stirred at room temperature overnight and continued to stir at 50 C for two more hours before partitioning between ethyl acetate and water. Organic layer was isolated, washed with 1 N HCl, brine and dried (MgSO4). Solvents were removed and residue was purified by column chromatography on silica gel using solutions of ethyl acetate in hexanes (1:4; 1:2) to yield the title compound (74 mg). LCMS m/e (230, M-t-Bu+2H)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08546404B2 |
| Source dataset | uspto-grants-2013_10 |
| ORD ID | ord-f246f9ddbbbb4452b0ccd6bcdbc0f627 |
| Source note | uspto-grants-2013_10 |