Triethylamine → N-(4-Nitrobenzyl)cyclopropanesulfonamide
Reaction equation
Cl.[N+:2]([C:5]1[CH:12]=[CH:11][C:8]([CH2:9][NH2:10])=[CH:7][CH:6]=1)([O-:4])=[O:3].[CH:13]1([S:16](Cl)(=[O:18])=[O:17])[CH2:15][CH2:14]1.C(N(CC)CC)C>ClCCl.Cl.O>[CH:13]1([S:16]([NH:10][CH2:9][C:8]2[CH:7]=[CH:6][C:5]([N+:2]([O-:4])=[O:3])=[CH:12][CH:11]=2)(=[O:18])=[O:17])[CH2:15][CH2:14]1Participants
7
Procedure
4-Nitrobenzylamine HCl (1.5 g), cyclopropanesulfonyl chloride (1 g) and triethylamine (3 mL) were dissolved in dichloromethane (20 mL). The reaction solution was stirred at rt overnight. The reaction mixture was diluted with 1N HCl aq. solution (50 mL) and water (100 mL). The solution was extracted with ethyl acetate (2×100 mL). The organic solution was evaporated to give N-cyclopropylsulfonyl-4-nitrobenzylamine. 1H NMR (DMSO-d6): δ 0.89 (d, J=7.8 Hz, 4H), 4.33 (d, J=6.6 Hz, 2H), 7.61 (d, J=8.7 Hz, 2H), 7.83 (t, J=6.6 Hz, 1H), 8.20 (d, J=8.7 Hz, 2H).
Workup
- extractionThe solution was extracted with ethyl acetate (2×100 mL)
- customThe organic solution was evaporated
Sources & evidence
- ORD record
- ord-a0c0352b90e74154963a3e67e077a0d0
- Source dataset
- uspto-grants-2011_05
- Patent number
- US07947698B2
Reaction notes
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