Nitrogen → HCID 14075281, compound
Reaction equation
[CH2:1]([NH:3][C:4]([C:11]1[CH:16]=[CH:15][C:14]([Cl:17])=[CH:13][CH:12]=1)=[CH:5][C:6]([O:8][CH2:9][CH3:10])=[O:7])[CH3:2].[C:18](OCC)(=[O:23])[CH2:19][C:20]([CH3:22])=O.N#N>>[CH2:1]([N:3]1[C:20]([CH3:22])=[CH:19][C:18](=[O:23])[C:5]([C:6]([O:8][CH2:9][CH3:10])=[O:7])=[C:4]1[C:11]1[CH:12]=[CH:13][C:14]([Cl:17])=[CH:15][CH:16]=1)[CH3:2]Participants
4
Procedure
6 gms of ethyl beta-ethylamino-4-chlorocinnamate and 12 gms of ethyl acetoacetate is mixed in a 50 ml 3-neck flask fitted with a N2 -inlet, magnetic stirring bar, thermometer and a short-path distillation head (with receiver). The reaction mixture is heated (170°) for 10 hours. Ethanol and water is collected in the distillation receiver. The reaction mixture is cooled and triturated with ethyl acetate/ether to yield 2.52 gms of ethyl 1-ethyl-6-methyl-2-(4'-chlorophenyl)-4-oxonicotinate.
Workup
- temperatureThe reaction mixture is heated (170°) for 10 hours
- distillationEthanol and water is collected in the distillation receiver
- temperatureThe reaction mixture is cooled
- customtriturated with ethyl acetate/ether
Sources & evidence
- ORD record
- ord-d441e9b3d074490098bdceb2c670abbd
- Source dataset
- uspto-grants-1990_06
- Patent number
- US04936904
Reaction notes
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