Piperazine → HCID 11485920, compound
Reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([CH:17]=[O:18])=[C:9]2Cl)[CH:5]=[CH:6][CH:7]=1.[NH:20]1[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]1>>[Br:1][C:2]1[CH:3]=[C:4]([N:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([CH:17]=[O:18])=[C:9]2[N:20]2[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]2)[CH:5]=[CH:6][CH:7]=1Participants
3
Procedure
1-(3-bromo-phenyl)-2-chloro-1H-indole-3-carboxaldehyde is reacted with piperazine as described in Step 2 of Example 29 to afford 1-(3-bromophenyl)-2-piperazin-1-yl-1H-indole-3-carboxaldehyde (31% yield). ESI/MS 384 (M), 386 (M+2); RT 2.70 min; NMR (CDCl3) 10.31 (1H, s); 8.28 (1H, d, J=9 Hz); 7.67 (2H, m); 7.63-7.16 (5H, m); 7.01 (1H, d, J=9 Hz); 3.31 (4H, m); 2.82 (4H, m).
Sources & evidence
- ORD record
- ord-6a727931371d44a58a35ec078276c14a
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07405300B2
Reaction notes
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