Water → N'-(4-chlorocyclohexyl)-urea
Reaction equation
C1(S([N:10](C)[C:11](OCC)=[O:12])(=O)=O)C=CC=CC=1.[Cl:17][CH:18]1[CH2:23][CH2:22][CH:21]([NH2:24])[CH2:20][CH2:19]1.C([O-])(=O)C.O.CO.CN(C)C=O>O1CCOCC1>[Cl:17][CH:18]1[CH2:23][CH2:22][CH:21]([NH:24][C:11](=[O:12])[NH2:10])[CH2:20][CH2:19]1Participants
6
Procedure
4.26 g of N-[4-(β-<2-methoxy-5-chlorobenzamido>-ethyl)-benzenesulfonyl-methyl-urethane are heated for 1 1/2 hours in a reflux condenser in 100 ml dioxane with 2 g of 4-chlorocyclohexylamine-acetate. After addition of water and recrystallization of the precipitating product from methanol/dimethylformamide there is obtained in good yield the N-[4-<2-methoxy-5-chlorobenzamido>-ethyl)-benzenesulfonyl]-N'-(4-chlorocyclohexyl)-urea melting at 177° -178°C.
Workup
- customis obtained
Sources & evidence
- ORD record
- ord-af9cfbca12b34e2da601f7fc3c514af1
- Source dataset
- uspto-grants-1976_01
- Patent number
- US03932503
Reaction notes
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