Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Tributylvinyltin | HCID 81998 | — |
| Reactant | Methyl 2-chloropyrimidine-5-carboxylate | HCID 12627752 | — |
| Catalyst | Triphenylphosphine | HCID 11776 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 68726425 | HCID 68726425 | 44.8% |
Reaction Steps
To a solution of methyl-2-chloropyrimidine-5-carboxylate (2.084 g, 12.08 mmol) and tributyl(vinyl)tin (3.635 g, 11.46 mmol) in toluene (15 ml) was added triphenylphosphine (94.9 mg, 0.362 mmol) followed by tetrakis(triphenylphosphine) palladium(0) (418.5 mg, 0.362 mmol). The mixture was stirred at 110° C. for 10 h under anhydrous argon. After evaporation of solvent, the residue was purified by flash chromatography (hexanes-ethyl acetate=4:1, then 1:1) to give the title compound (0.842 g) as a white solid. Mass spectrum (ESI) 166.2 (M+1). 1H NMR (500 MHz, CDCl3) δ 9.26 (s, 2H), 6.95-7.01 (m, 1H), 6.82 (dd, 1H, J=1.4, 17.2 Hz), 5.92 (dd, 1H, J=1.4, 10.5 Hz), 4.01 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08445480B2 |
|---|
| Source dataset | uspto-grants-2013_05 |
|---|
| ORD ID | ord-44738ca3b9ca4b12bdae11359cdbc92c |
|---|
| Source note | uspto-grants-2013_05 |
|---|