Morpholine → 4-(5-bromopyridin-2-yl)morpholine
Reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5](Cl)=[N:6][CH:7]=1.[NH:9]1[CH2:14][CH2:13][O:12][CH2:11][CH2:10]1>CN(C)C(=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([N:9]2[CH2:14][CH2:13][O:12][CH2:11][CH2:10]2)=[N:6][CH:7]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 130 °C
Procedure
5-Bromo-2-chloropyridine (5.0 g) was mixed with N,N-dimethylacetamide (25 ml), and morpholine (23 ml) was added thereto, followed by stirring at 130° C. for 2 days. The reaction mixture was concentrated under reduced pressure, and water was added to the residue, followed by extraction with EtOAc, and the organic layer was washed with saturated brine and dried over Na2SO4. The organic layer was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/EtOAc) to obtain 4-(5-bromopyridin-2-yl)morpholine (6.07 g).