Chlorosuccinimide → HCID 53981427, compound

HRID 442692Notes

Reaction equation

HRID 442692 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:14]3[CH:15]=[C:16]4[O:21][CH2:20][O:19][C:17]4=[CH:18][C:13]=3[CH2:12][C:11](=[O:22])[NH:10][N:9]=2)=[CH:4][CH:3]=1.C1C(=O)N([Cl:30])C(=O)C1>CN(C=O)C.CCOC(C)=O>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:14]3[CH:15]=[C:16]4[O:21][CH2:20][O:19][C:17]4=[CH:18][C:13]=3[CH2:12][C:11](=[O:22])[NH:10][N:9]=2)=[CH:4][C:3]=1[Cl:30]

Participants

5

Reactant 2

HCID 31398ChlorosuccinimideHCID 9839097HCID 9839097, compound

Product 1

HCID 53981427HCID 53981427, compoundYield 47.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 1-(4-aminophenyl)-7,8-methylenedioxy-3,5-dihydro-2,3-benzodiazepin-4(4H)-one (118 mg, 0.400 mmol) in DMF (3 mL) was added NCS (51 mg, 0.38 mmol). The mixture was stirred at room temperature for 20 h, diluted with EtOAc (50 mL), washed with water and brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by chromatography (1:1 hexane/EtOAc) to afford the title compound as a tan solid (60 mg, 0.18 mmol, 45%), mp: 256°-258° C. 1H NMR (CDCl3) 8.50 (s, 1H), 7.54 (s, 1H), 7.32(d, J=8.3, 1H), 6.82 (s, 1H), 6.77 (d, J=8.3, 1H), 6.69 (s, 1H), 6.04 (s, 2H), 4.33 (s, 2H), 3.42 (s, 2H).

Workup

  1. washwashed with water and brine
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by chromatography (1:1 hexane/EtOAc)

Sources & evidence

ORD record
ord-80a63c5275104f23839b9382761f4b58
Source dataset
uspto-grants-1999_04
Patent number
US05891871

Reaction notes

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