Trifluoroacetic acid → HCID 45786952, compound
Reaction equation
FC(F)(F)C(O)=O.[N+:8]([C:11]1[CH:12]=[CH:13][C:14]([O:17][CH:18]2[CH2:23][CH2:22][N:21](C(OC(C)(C)C)=O)[CH2:20][CH2:19]2)=[N:15][CH:16]=1)([O-:10])=[O:9]>ClCCl>[N+:8]([C:11]1[CH:12]=[CH:13][C:14]([O:17][CH:18]2[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]2)=[N:15][CH:16]=1)([O-:10])=[O:9]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Trifluoroacetic acid (5 eq) was added to a solution of tert-butyl 4-(5-nitropyridin-2-yloxy)piperidine-1-carboxylate (1 eq) in dichloromethane, stirring at room temperature for 1 hour. The solvent was then evaporated, the residue brought to pH=10 with sat. aq. Na2CO3 solution and extracted with EtOAc. The organic layer was washed with brine, dried over sodium sulfate and evaporated to afford the product as a light yellow crystalline solid. LC/MS (m/z): 224.3 (MH+), Rt 1.64 minutes
Workup
- customThe solvent was then evaporated
- extractionextracted with EtOAc
- washThe organic layer was washed with brine
- dry with materialdried over sodium sulfate
- customevaporated
Sources & evidence
- ORD record
- ord-284d8c066c4544c49cb46c23560414c6
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08563549B2
Reaction notes
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