Phthalimide → N-(3-nitrophenethyl)phthalimide
Reaction equation
[N+:1]([C:4]1[CH:5]=[C:6]([CH:10]=[CH:11][CH:12]=1)[CH2:7][CH2:8]O)([O-:3])=[O:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[C:32]1(=[O:42])[NH:36][C:35](=[O:37])[C:34]2=[CH:38][CH:39]=[CH:40][CH:41]=[C:33]12.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[N+:1]([C:4]1[CH:5]=[C:6]([CH:10]=[CH:11][CH:12]=1)[CH2:7][CH2:8][N:36]1[C:35](=[O:37])[C:34]2=[CH:38][CH:39]=[CH:40][CH:41]=[C:33]2[C:32]1=[O:42])([O-:3])=[O:2]Participants
6
Procedure
In tetrahydrofuran (225 ml) was dissolved 15 g of 3-nitrophenethyl alcohol, followed by adding triphenylphosphine (26 g) and phthalimide (13.9 g). Then, the resulting mixture was ice-cooled, followed by dropwise addition of diethyl azodicarboxylate (15.5 ml). After stirring at room temperature for 1 hour, the resulting crystals were collected by filtration, washed with diethyl ether and dried, to give N-(3-nitrophenethyl)phthalimide as colorless crystals.
Workup
- temperaturecooled
- filtrationthe resulting crystals were collected by filtration
- washwashed with diethyl ether
- customdried
Sources & evidence
- ORD record
- ord-ecef675d63c44e868d896515a77f310c
- Source dataset
- uspto-grants-2004_09
- Patent number
- US06787534B2
Reaction notes
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