반응 #89370

반응 방정식

3-bromo-6-methylpicolinonitrile

2-(tributylstannyl)pyridine

cesium fluoride

→

title compound

수율 88.0%

6′-Methyl-[2,3′-bipyridine]-2′-carbonitrile

수율 88.0%

용매

DMF

반응 조건

후처리

1. 1
   기타was degassed
2. 2
   기타The solvent was removed in vacuo
3. 3
   기타to obtain the crude which
4. 4
   기타was purified by silica gel chromatography (0˜100% DCM/EtOAc)

실험 절차

A mixture of 3-bromo-6-methylpicolinonitrile (1 g, 5.1 mmol), 2-(tributylstannyl)pyridine (2.43 ml, 6.60 mmol), cesium fluoride (150 mg, 10.2 mmol), CuI (193 mg, 1.02 mmol) and Pd(PPh3)4 (586 mg, 0.51 mmol) in DMF (10 mL) was degassed and heated at 120° C. for 1 h in a microwave reactor. The solvent was removed in vacuo to obtain the crude which was purified by silica gel chromatography (0˜100% DCM/EtOAc) to yield the title compound as a brown oil (0.87 g, 88%). MS (ESI) 196 (M+H).

출처