Acetonitrile → Ethyl 6-morpholinonicotinate
Reaction equation
Cl[C:2]1[CH:12]=[CH:11][C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])=[CH:4][N:3]=1.[NH:13]1[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1.C(#N)C>O>[N:13]1([C:2]2[N:3]=[CH:4][C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])=[CH:11][CH:12]=2)[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 100 °C
Procedure
Ethyl 6-chloronicotinate (5.0 g) and morpholine (10 ml) were mixed and then heated to 100° C. In less than 5 minutes at this temperature, a thick paste formed. Acetonitrile (15 ml) was added and heating was continued overnight at 90° C. The mixture was cooled, diluted with water and extracted with ethyl acetate. The organic layer was dried and concentrated in vacuo to give ethyl 6-morpholin-4-ylpyridine-3-carboxylate as a white solid. NMR (300 MHz, CDCl3: 8.80 (s, 1H), 8.05 (d, 1H), 6.60 (d, 1H), 4.35 (q, 2H), 3.80 (m, 4H), 3.65 (m, 4H), 1.35 (t, 3H).
Workup
- waitIn less than 5 minutes at this temperature
- customa thick paste formed
- temperatureheating
- temperatureThe mixture was cooled
- extractionextracted with ethyl acetate
- customThe organic layer was dried
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-b634127504ca40c3b7ae2f51dc4c5d4b
- Source dataset
- uspto-grants-2002_07
- Patent number
- US06417185B1
Reaction notes
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