Ammonium Chloride → HCID 22254170, compound
Reaction equation
[C:1]1([Mg]Br)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Cl:9][C:10]1[CH:15]=[C:14]([Cl:16])[CH:13]=[CH:12][C:11]=1[CH:17]1[C:22](=[C:23]=[O:24])[CH:21]=[CH:20][C:19]([NH:25][CH2:26][CH2:27][NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])=[CH:18]1.[NH4+].[Cl-]>C1COCC1.CCOC(C)=O.O>[Cl:9][C:10]1[CH:15]=[C:14]([Cl:16])[CH:13]=[CH:12][C:11]=1[C:17]1[CH:18]=[C:19]([NH:25][CH2:26][CH2:27][NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH:20]=[CH:21][C:22]=1[CH:23]([OH:24])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1Participants
7
Procedure
Phenylmagnesiumbromide (1M in THF) (2eq) is added to a solution of 8 (50 mg) in THF (10 ml) at 78° C. under argon with stirring. The reaction is allowed to stir for 15 min. at 78° C. after the addition of Grignard at which time sat; aq. NH4Cl (4 ml) is added to quench the reaction. The mixture is diluted with EtOAc (60 ml) and water (2 ml), and the layers are separated. The organic layer is washed with sat. aq. NH4Cl (10 ml), water (10 ml), brine (10 ml), dried (Na2SO4), filtered and concentrated. The residue is purified by silica column chromatography eluting with EtOAc/hexane to give 13.
Workup
- stirringto stir for 15 min. at 78° C.
- additionafter the addition of Grignard at which time
- customto quench
- customthe reaction
- customthe layers are separated
- washThe organic layer is washed with sat. aq. NH4Cl (10 ml), water (10 ml), brine (10 ml)
- dry with materialdried (Na2SO4)
- filtrationfiltered
- concentrationconcentrated
- customThe residue is purified by silica column chromatography
- washeluting with EtOAc/hexane
Sources & evidence
- ORD record
- ord-dce057c42b7e426a84f1ad480725696e
- Source dataset
- uspto-grants-2006_01
- Patent number
- US06989382B2
Reaction notes
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