Reaktion #611101

Reaktionsgleichung

Compound I

4-Benzyloxy-2-bromo-pyridine

2-aminopyridine

tBuOK

→

II

Ausbeute 73.0%

(4-Benzyloxy-pyridin-2-yl)-pyridin-2-yl-amine

Ausbeute 73.0%

Lösungsmittel

CH2Cl2

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONwas added
2. 2
   Sonstigefollowed by the removal of the solvent under reduced pressure
3. 3
   SonstigeThe resulting dry
4. 4
   Sonstigewas purified by silica gel column chromatography
5. 5
   Wascheneluting with hexane/EtOAc (60:40

Vorschrift

Compound I (2.325 mg, 8.80 mmol), 2-aminopyridine (911 mg, 9.68 mmol), tBuOK (1.481 g, 13.20 mmol), (±)-BINAP (219 mg, 0.35 mmol) and Pd2(dba)3 (201 mg, 0.22 mmol) were stirred in toluene (35 mL) at 90° C. under Ar(g) for 17 h. The reaction mixture was then diluted with CH2Cl2 (20 mL) and silica was added followed by the removal of the solvent under reduced pressure. The resulting dry loaded material was purified by silica gel column chromatography eluting with hexane/EtOAc (60:40 then 50:50) to furnish II as a yellow oil (1.773 g, 73%).

Quelle