N-bromobutanimide → HCID 23369659, compound
Reaction equation
[CH3:1][C:2](=[CH2:18])[CH2:3][C:4]1[C:5]([OH:17])=[C:6]2[C:11](=[C:12]([CH3:14])[CH:13]=1)[NH:10][C:9](=[O:15])[C:8]([CH3:16])=[CH:7]2.[Br:19]N1C(=O)CCC1=O>>[Br:19][CH2:18][C:2]1([CH3:1])[O:17][C:5]2=[C:6]3[C:11](=[C:12]([CH3:14])[CH:13]=[C:4]2[CH2:3]1)[NH:10][C:9](=[O:15])[C:8]([CH3:16])=[CH:7]3Participants
3
Procedure
Reaction, past-process, and recrystallization (chloroform-methanol-ether) were performed in a manner similar to that described in Example 277 using 6-(2-methyl-2-propenyl)-5-hydroxy-3,8-dimethylcarbostyril (3.29 g, 13.54 mmol) and N-bromsuccinimide (2.41 g, 13.54 mmol). As a result, 3.93 g of the title compound was obtained as pale yellow prisms (90.1%).
Workup
- customReaction
- custompast-process, and recrystallization (chloroform-methanol-ether)
Sources & evidence
- ORD record
- ord-221835fc20674cb58f0fcb5735c7d996
- Source dataset
- uspto-grants-1996_11
- Patent number
- US05576324
Reaction notes
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