Hexamethylenetetramine → HCID 21931723, compound
Reaction equation
[F:1][C:2]1[CH:3]=[C:4]([O:16][CH3:17])[CH:5]=[C:6]2[C:11]=1[N:10]([CH3:12])[C:9](=[O:13])[CH2:8][C:7]2([CH3:15])[CH3:14].FC(F)(F)[C:20](O)=[O:21].C1N2CN3CN(C2)CN1C3>>[F:1][C:2]1[C:3]([CH:20]=[O:21])=[C:4]([O:16][CH3:17])[CH:5]=[C:6]2[C:11]=1[N:10]([CH3:12])[C:9](=[O:13])[CH2:8][C:7]2([CH3:14])[CH3:15]Participants
Procedure
To a flame dried round bottom flask equipped with a nitrogen cap was added 74 mg (0.312 mmol) 8-fluoro-6-methoxy-1,4,4-trimethyl-3,4-dihydro-1H-quinolin-2-one, 3 ml of trifluoroacetic acid and 53 mg (0.38 mmol) of hexamethylene tetraamine. The mixture was stirred under reflux for 16 hours and then cooled to ambient temperature. The reaction mixture was quenched first with water and then 30 ml of saturated aqueous bicarbonate solution and extracted with ethyl acetate (3×30 ml). The combined organics were then washed with brine followed by drying over sodium sulfate and evaporation in vacuo. The crude product was purified on silica gel eluting with ethyl acetate to afford 43 mg (52%) of the desired product. Mass spectrum APCI m/e 266 (p+1).
Workup
- customTo a flame dried round bottom flask
- customequipped with a nitrogen
- customcap
- temperatureunder reflux for 16 hours
- customThe reaction mixture was quenched first with water
- extraction30 ml of saturated aqueous bicarbonate solution and extracted with ethyl acetate (3×30 ml)
- washThe combined organics were then washed with brine
- dry with materialby drying over sodium sulfate and evaporation in vacuo
- customThe crude product was purified on silica gel eluting with ethyl acetate
Sources & evidence
- ORD record
- ord-f066174c1d7f42b2ad3f6a027d13b722
- Source dataset
- uspto-grants-2006_10
- Patent number
- US07119207B2
Reaction notes
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