Pyridine → HCID 15859007, compound
Reaction equation
[CH:1]1([C:6]2[NH:7][C:8]3[CH2:9][C:10]([CH3:38])([CH3:37])[CH2:11][C:12](=[O:36])[C:13]=3[CH:14]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[C:30]([F:35])[CH:29]=3)[C:15]=2[C:16](=[O:27])[C:17]2[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.N1C=CC=CC=1>C(Cl)Cl.[O-2].[O-2].[Mn+4]>[CH:1]1([C:6]2[C:15]([C:16](=[O:27])[C:17]3[CH:18]=[CH:19][C:20]([C:23]([F:26])([F:24])[F:25])=[CH:21][CH:22]=3)=[C:14]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[C:30]([F:35])[CH:29]=3)[C:13]3[C:12](=[O:36])[CH2:11][C:10]([CH3:38])([CH3:37])[CH2:9][C:8]=3[N:7]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
0.9 g (1.7 mmol) of 2-cyclopentyl-4-(3,4-difluorophenyl)-7,7-dimethyl-3-(4-trifluoromethylbenzoyl)4,6,7,8-tetrahydro-1H-quinolin-5-one were oxidized at room temperature within one hour to give the pyridine, using 4.5 g of manganese dioxide (activated) in 25 ml of methylene chloride. The manganese dioxide was separated off and the methylene chloride was distilled off, and the mixture was then filtered off with suction using petroleum ether. This gave 0.8 g of crystals of melting point: 210-212° C.
Workup
- customThe manganese dioxide was separated off
- distillationthe methylene chloride was distilled off
- filtrationthe mixture was then filtered off with suction
Sources & evidence
- ORD record
- ord-0139caebedb84324806f598c453d2337
- Source dataset
- uspto-grants-2003_05
- Patent number
- US06562976B2
Reaction notes
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