Ethylenediamine → 4-(N,S-Dimethylsulfonimidoyl)benzylamine
Reaction equation
[CH3:1][N:2]=[S:3]([C:6]1[CH:23]=[CH:22][C:9]([CH2:10][N:11]2C(=O)C3C(=CC=CC=3)C2=O)=[CH:8][CH:7]=1)([CH3:5])=[O:4].NCCN.C(#N)C.O1CCCC1>C(O)C>[CH3:1][N:2]=[S:3]([C:6]1[CH:23]=[CH:22][C:9]([CH2:10][NH2:11])=[CH:8][CH:7]=1)([CH3:5])=[O:4]Participants
6
Procedure
A mixture of 2-(4-(N,S-dimethylsulfonimidoyl)benzyl)isoindoline-1,3-dione (189 mg, 0.58 mmol) and 1,2-diaminoethane (132 μL, 3.44 mmol) in a 2:1:1 mixture of acetonitrile, tetrahydrofuran and ethanol (2 mL) is heated at reflux for 1 h. All volatiles are removed under reduced pressure, and the residue is treated with dichloromethane. The mixture is filtered, and the filtrate is concentrated under reduced pressure. Yield: 114 mg (85% of theory); ESI mass spectrum: [M+H]+=199; r.t. HPLC: 0.22 min (X011_S03).
Workup
- temperatureis heated
- temperatureat reflux for 1 h
- customAll volatiles are removed under reduced pressure
- additionthe residue is treated with dichloromethane
- filtrationThe mixture is filtered
- concentrationthe filtrate is concentrated under reduced pressure
- customr.t
- custom0.22 min (X011_S03)
Sources & evidence
- ORD record
- ord-e79c3980c4ee481c8d121f645d85ca49
- Source dataset
- uspto-grants-2016_05
- Patent number
- US09346794B1
Reaction notes
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