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N-bromobutanimide → N-Ethylcarbamate 5-methyl-6-bromo-8-methyl-1,2,3,3a,8,8a-hexahydroindeno[1,2-c]pyrrole

HRID 508515
Notes
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Reaction equation

HRID 508515 reaction equation
C1C(=O)N([Br:8])C(=O)C1.[CH2:9]([NH:11][C:12](=[O:14])[O-:13])[CH3:10].[CH3:15][C:16]1[CH:17]=[CH:18][C:19]2[CH:20]([CH3:28])[CH:21]3[CH2:25][NH:24][CH2:23][CH:22]3[C:26]=2[CH:27]=1>C(#N)C.C(Cl)Cl.O>[CH2:9]([NH:11][C:12](=[O:13])[O-:14])[CH3:10].[CH3:15][C:16]1[C:17]([Br:8])=[CH:18][C:19]2[CH:20]([CH3:28])[CH:21]3[CH2:25][NH:24][CH2:23][CH:22]3[C:26]=2[CH:27]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 2

HCID 67184N-bromobutanimideHCID 86602856HCID 86602856, compound

Product 1

HCID 86602858N-Ethylcarbamate 5-methyl-6-bromo-8-methyl-1,2,3,3a,8,8a-hexahydroindeno[1,2-c]pyrrole

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6342AcetonitrileSolvent
HCID 6344
Dichloromethane
Solvent

Procedure

NBS (34 mg, 0.2 mmol) was added to a solution of N-Ethylcarbamate-5-methyl-8-methyl-1,2,3,3a,8,8a-hexahydroindeno[1,2-c]pyrrole (from Example 21, Step A) (50 mg, 0.2 mmol) in acetonitrile (1 mL), and stirred overnight at room temperature. The reaction was diluted with CH2Cl2 (3 mL) and H2O (3 mL) and filtered through an Extrelut column. The column was washed with CH2Cl2 and the filtrate was concentrated. The crude product was purified by column chromatography (SiO2) using a 0-50% EtOAc-hexanes gradient to afford the subtitle compound. MS calculated for C16H20BrNO2+H: 338, observed: 338.

Workup

  1. filtrationfiltered through an Extrelut column
  2. washThe column was washed with CH2Cl2
  3. concentrationthe filtrate was concentrated
  4. customThe crude product was purified by column chromatography (SiO2)

Sources & evidence

ORD record
ord-2dccdb728c0b48579d7f55be98bfeac0
Source dataset
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09096520B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes