Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | 2-Bromopyridine | HCID 7973 | — |
| Edukt | Potassium Carbonate | HCID 11430 | — |
| Edukt | 2-(Dihydroxyboranyl)benzoic acid | HCID 2733985 | — |
| Katalysator | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Lösungsmittel | 1,4-Dioxane | HCID 31275 | — |
| Produkt | 2-(Pyridin-2-YL)benzoic acid | HCID 15733175 | 42,9% |
Reaktionsschritte
A mixture of 2-boronobenzoic acid (400 mg, 2.4 mmol), 2-bromopyridine (416 mg, 2.6 mmol), K2CO3 (994 mg, 7.2 mmol) and Pd(dppf)Cl2 (20 mg) in dioxane (8 mL) and H2O (2 mL) was stirred at 125° C. for 30 min. under microwave heating under N2. The catalyst was filtered, and the filtrate was acidified with 2N HCl to pH 5˜6. The solution was concentrated, and the residue was dissolved in MeOH and filtered. The filtrate was concentrated, and the residue was purified by prep-TLC to give the title compound (205 mg, Yield 42.9%). LCMS (m/z): 200.0 (M+1).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patentnummer | US08993555B2 |
|---|
| Quelldatensatz | uspto-grants-2015_03 |
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| ORD ID | ord-9c80a45b87834459a401f8590f85ee4e |
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| Quellennotiz | uspto-grants-2015_03 |
|---|
