Ammonia → HCID 67915871, compound
Reaction equation
[NH3:1].F[B-](F)(F)F.C(O[C:10](=[N+:18]1[CH2:26][CH:25]2[CH:20]([C:21]([C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[CH2:22][CH2:23][C:24]2=[O:27])[CH2:19]1)[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)C.C(=O)([O-])[O-].[K+].[K+]>ClCCl>[NH:1]=[C:10]([N:18]1[CH2:26][CH:25]2[CH:20]([C:21]([C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[CH2:22][CH2:23][C:24]2=[O:27])[CH2:19]1)[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A 0.8N solution (8.8 cc) of ammonia in dichloromethane is added to a stirred suspension, cooled to -20° C., of (3aRS,7aRS)-2-(1-ethoxy-2-phenylethylidene)-4-oxo-7,7-diphenylperhydroisoindolium tetrafluoroborate (3.75 g) in anhydrous dichloromethane (30 cc). The reaction mixture is allowed to return to room temperature and stirring is continued for 5 hours. The reaction mixture is treated with 10% strength aqueous potassium carbonate solution (30 cc). The precipitate present is removed by filtration and the organic phase is then washed with distilled water (15 cc) and with saturated aqueous sodium chloride solution (15 cc), dried over magnesium sulphate and concentrated to dryness under reduced pressure (2.7 kPa). The residue is recrystallized in acetonitrile (22 cc). The crystals obtained are drained and dried. (3aRS,7aRS)-2-(α-Iminophenethyl)-7,7-diphenylperhydro-4-isoindolone (1.3 g), m.p. 202° C., is obtained.
Workup
- customto return to room temperature
- customThe precipitate present is removed by filtration
- washthe organic phase is then washed with distilled water (15 cc) and with saturated aqueous sodium chloride solution (15 cc)
- dry with materialdried over magnesium sulphate
- concentrationconcentrated to dryness under reduced pressure (2.7 kPa)
- customThe residue is recrystallized in acetonitrile (22 cc)
- customThe crystals obtained
- customdried
Sources & evidence
- ORD record
- ord-d4bd3d48660b4def82bbc153cb5040db
- Source dataset
- uspto-grants-1992_05
- Patent number
- US05112988
Reaction notes
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