Ethanolamine → HCID 22051136, compound
Reaction equation
[Br:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([S:9](Cl)(=[O:11])=[O:10])=[CH:5][CH:4]=1.[CH2:13]([CH2:15][NH2:16])[OH:14].C(N(CC)C(C)C)(C)C>O1CCCC1>[Br:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([S:9]([NH:16][CH2:15][CH2:13][OH:14])(=[O:11])=[O:10])=[CH:5][CH:4]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
4-(Bromomethyl)benzenesulfonyl chloride (5.0 g, 18.6 mmol) was dissolved in tetrahydrofuran. Ethanolamine (1.1 mL, 18.6 mmol) and N,N-diisopropylethylamine (3.9 mL, 22.3 mmol) were added, and the reaction was allowed to stir at ambient temperature for 30 minutes. The reaction was concentrated to an oil that was partitioned between water and ethyl acetate and extracted with ethyl acetate. The organic extracts were combined, washed with brine, dried over Na2SO4, and filtered. The resulting filtrate was concentrated to an oil that was a mixture of the title compound and 4-chloromethyl N-(2-hydroxyethyl)benzenesulfonamide. The resulting oil was dried in vacuo (3.7 g, 68%). ES-MS m/z 250 (M+H) and 294 (M+H).
Workup
- concentrationThe reaction was concentrated to an oil that
- customwas partitioned between water and ethyl acetate
- extractionextracted with ethyl acetate
- washwashed with brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationThe resulting filtrate was concentrated to an oil that
- additiona mixture of the title compound and 4-chloromethyl N-(2-hydroxyethyl)benzenesulfonamide
- customThe resulting oil was dried in vacuo (3.7 g, 68%)
Sources & evidence
- ORD record
- ord-91905acbed66445981ce8e127a38ed3c
- Source dataset
- uspto-grants-2009_12
- Patent number
- US07629363B2
Reaction notes
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