Ethylenediamine → 4-(2-Aminoethyl)benzonitrile
Reaction equation
F[C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][CH:3]=1.[CH2:10](N)[CH2:11][NH2:12]>>[NH2:12][CH2:11][CH2:10][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[CH:4][CH:3]=1Participants
3
Procedure
4-Fluorobenzonitrile is reacted with an excess of ethylenediamine in an aprotic solvent to give 4-(2-aminoethyl)benzonitrile which is then mono-alkylated with ethyl bromoacetate in a polar solvent such as ethanol or acetonitrile in the presence of an inorganic base or a tertiary amine. Acylation with chloroacetyl chloride followed by cyclization and hydrolysis give the acid (1).
Sources & evidence
- ORD record
- ord-5b0044c39dfb41589ade3bda6fadf850
- Source dataset
- uspto-grants-2002_01
- Patent number
- US06335337B1
Reaction notes
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