4-Methylmorpholine → 4,7-Dibromo-N-methoxy-N-methyl-2,3-dihydro-1H-indene-5-carboxamide

HRID 576299Notes

Reaction equation

HRID 576299 reaction equation
[Br:1][C:2]1[C:10]([C:11](O)=[O:12])=[CH:9][C:8]([Br:14])=[C:7]2[C:3]=1[CH2:4][CH2:5][CH2:6]2.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.CN1CCOCC1.Cl.[CH3:44][NH:45][O:46][CH3:47]>C(Cl)Cl>[Br:1][C:2]1[C:10]([C:11]([N:45]([O:46][CH3:47])[CH3:44])=[O:12])=[CH:9][C:8]([Br:14])=[C:7]2[C:3]=1[CH2:4][CH2:5][CH2:6]2

Participants

7

Reactant 5

HCID 79724-MethylmorpholineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 710783864,7-dibromo-2,3-dihydro-1H-indene-5-carboxylic acid

Product 1

HCID 867140174,7-Dibromo-N-methoxy-N-methyl-2,3-dihydro-1H-indene-5-carboxamideYield 7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of acid 4 (4.8 g, 15.0 mmol) in CH2Cl2 (80 mL) were added EDCI (3.83 g, 20 mmol), HOBT (2.70 g, 20 mmol), NMM (8.8 mL, 80 mmol) and N,O-dimethylhydroxylamine-HCl (1.95 g, 20 mmol) at rt. The mixture was stirred at rt overnight. The reaction mixture was quenched with water (50 mL) and extracted with DCM (100 mL). The organic layer was washed with brine, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography to provide the compound 9 (0.27 g, 0.73 mmol, 7%).

Workup

  1. customThe reaction mixture was quenched with water (50 mL)
  2. extractionextracted with DCM (100 mL)
  3. washThe organic layer was washed with brine
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-673e9a4fd0ab442889efe5f5ffddfddf
Source dataset
uspto-grants-2015_05
Patent number
US09034921B2

Reaction notes

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