Tetrabutylammonium Fluoride → HCID 67583568, compound
Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([O:13][Si](C(C)(C)C)(C)C)[CH2:10][C@H:9]1[CH2:21][CH2:22][O:23][C:24]1[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=1[CH2:31][CH2:32][C:33]1[CH:38]=[CH:37][C:36]([F:39])=[C:35]([F:40])[CH:34]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([OH:13])[CH2:10][C@H:9]1[CH2:21][CH2:22][O:23][C:24]1[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=1[CH2:31][CH2:32][C:33]1[CH:38]=[CH:37][C:36]([F:39])=[C:35]([F:40])[CH:34]=1)=[O:7])([CH3:4])([CH3:2])[CH3:3]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
580 mg of (2R,4R)-1-t-butoxycarbonyl-4-t-butyldimethylsilyloxy-2-[2-{2-[2-(3,4-difluorophenyl)ethyl]-4-fluorophenoxy}ethyl]pyrrolidine [prepared as described in step (a) above] were dissolved in 5 ml of tetrahydrofuran, and then 0.31 ml of tetrabutylammonium fluoride were added to the resulting solution. The resulting mixture was then stirred at room temperature for 1 hour. At the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure, and the concentrated oily substance was purified by silica gel column chromatography, using a 1:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 280 mg (yield 61%) of the title compound as a colorless solid substance.
Workup
- concentrationAt the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure
- customthe concentrated oily substance was purified by silica gel column chromatography
- additionby volume mixture of hexane and ethyl acetate as the eluent
Sources & evidence
- ORD record
- ord-ff0a4c8cecd445f48c03cb15fde39186
- Source dataset
- uspto-grants-1998_12
- Patent number
- US05843983
Reaction notes
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