N,N-Diethylethylenediamine → 4-(6-Chloro-4-quinazolinylamino)-N-(2-diethylaminoethyl)benzenesulphonamide
Reaction equation
Cl.S(Cl)(Cl)(=O)=O.[Cl:7][C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][CH:17]=1)[N:14]=[CH:13][N:12]=[C:11]2[NH:18][C:19]1[CH:24]=[CH:23][C:22]([S:25]([OH:28])(=[O:27])=O)=[CH:21][CH:20]=1.[CH2:29]([N:31]([CH2:35][CH3:36])[CH2:32][CH2:33][NH2:34])[CH3:30]>>[Cl:7][C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][CH:17]=1)[N:14]=[CH:13][N:12]=[C:11]2[NH:18][C:19]1[CH:20]=[CH:21][C:22]([S:25]([NH:34][CH2:33][CH2:32][N:31]([CH2:35][CH3:36])[CH2:29][CH3:30])(=[O:27])=[O:28])=[CH:23][CH:24]=1Participants
4
Procedure
The sulphonyl chloride hydrochloride derivative of the sulphonic acid of part (a) was used to sulphonylate N,N-diethylethylenediamine using a similar procedure to Example 8. The crude product obtained after evaporation of solvent from the chloroform layer was a brown solid which was purified by column chromatography (basic alumina: 1% ethanol/chloroform) to give a creamy white solid. Recrystallisation from ethanol/water gave the title compound hemihydrate, m.p. 110°-113° C.
Workup
- customThe crude product obtained
- customafter evaporation of solvent from the chloroform layer
- customwas purified by column chromatography (basic alumina: 1% ethanol/chloroform)
- customto give a creamy white solid
- customRecrystallisation from ethanol/water
Sources & evidence
- ORD record
- ord-81d5369c985e4c40897e80a39b09057f
- Source dataset
- uspto-grants-1987_02
- Patent number
- US04640920
Reaction notes
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