Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Trimethylsilylacetylene | HCID 66111 | — |
| Reactant | HCID 117775552 | HCID 117775552 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 123767608 | HCID 123767608 | 82.8% |
Reaction Steps
A mixture of 5-bromo-3-iodo-1-methylpyridin-2-one (8.0 g, 25.48 mmol), ethynyltrimethylsilane (2.7 g, 27.52 mmol), CuI (485 mg, 2.55 mmol), Pd(PPh3)2Cl2 (1.79 g, 2.55 mmol) and triethylamine (12.9 g, 127.4 mmol) in dry THF (100 mL) was heated to 60° C. under an atmosphere of nitrogen for 2 h. The mixture was concentrated and the residue was purified by column chromatography on silica gel (PE:EA=5:1) to give the title compound (6 g, 82%) as a yellow solid. 1H NMR (CDCl3, 400 MHz): δ 7.61 (d, J=2.4 Hz, 1H), 7.42 (d, J=2.4 Hz, 1H), 3.54 (s, 3H), 0.25 (s, 9H). LCMS (M+H)+=285.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09034900B2 |
|---|
| Source dataset | uspto-grants-2015_05 |
|---|
| ORD ID | ord-d52a4a6ba56a414ab4f0a165c71fdc84 |
|---|
| Source note | uspto-grants-2015_05 |
|---|