Hydroxyamine hydrochloride → N-Hydroxy-3-[3-(naphthalen-1-ylsulfamoyl)-phenyl]-acrylamide

HRID 226152Notes

Reaction equation

HRID 226152 reaction equation
Cl.[NH2:2][OH:3].C([O-])(O)=O.[Na+].[C:9]1([NH:19][S:20]([C:23]2[CH:24]=[C:25]([CH:29]=[CH:30][C:31](Cl)=[O:32])[CH:26]=[CH:27][CH:28]=2)(=[O:22])=[O:21])[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:12]=[CH:11][CH:10]=1>O1CCCC1>[OH:3][NH:2][C:31](=[O:32])[CH:30]=[CH:29][C:25]1[CH:26]=[CH:27][CH:28]=[C:23]([S:20](=[O:22])(=[O:21])[NH:19][C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[CH:12]=[CH:11][CH:10]=2)[CH:24]=1

Participants

5

Reactant 3

HCID 443297Hydroxyamine hydrochlorideHCID 516892Sodium BicarbonateHCID 739894023-[3-(Naphthalen-1-ylsulfamoyl)phenyl]-acryloyl Chloride

Product 1

HCID 85325510N-Hydroxy-3-[3-(naphthalen-1-ylsulfamoyl)-phenyl]-acrylamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of hydroxylamine hydrochloride (0.215 g, 3.1 mmol) in tetrahydrofuran (3.5 ml) a saturated NaHCO3 solution (2.7 ml) was added and the resultant mixture was stirred at ambient temperature for 10 min. To the reaction mixture a solution of crude 3-[3-(naphthalen-1-ylsulfamoyl)-phenyl]-acryloyl chloride (16d) (0.23 g) in tetrahydrofuran (2.5 ml) was added and the mixture was stirred at ambient temperature for one hour. The reaction mixture was partitioned between ethyl acetate and 2N HCl. The organic layer was washed successively with water and saturated NaCl, then the solvent was removed. The residue was crystallised from ethyl acetate affording the title compound (0.054 g, 24%). M.p. 180° C. 1H NMR (DMSO-d6, HMDSO) δ: 6.45 (1H, d, J=16.0 Hz); 7.14 (1H, dd, J=7.0 and 1.4 Hz); 7.31-8.14 (11H, m); 9.09 (1H, br s); 10.27 (1H, s); 10.76 (1H, br s). HPLC analysis on Symmetry C18 column: impurities 4% (column size 3.9×150 mm; mobile phase acetonitrile—0.1M phosphate buffer (pH 2.5), 40:60; sample concentration 0.3 mg/m; flow rate 1.2 ml/min; detector UV 220 nm). Anal. Calcd for C19H16N2O4S, %: C 61.94, H 4.38, N 7.60. Found, %: C 61.18, H 4.32, N 7.54.

Workup

  1. additionwas added
  2. customThe reaction mixture was partitioned between ethyl acetate and 2N HCl
  3. washThe organic layer was washed successively with water and saturated NaCl
  4. customthe solvent was removed
  5. customThe residue was crystallised from ethyl acetate affording the title compound (0.054 g, 24%)

Sources & evidence

ORD record
ord-3487661546a245a487b549839357d885
Source dataset
uspto-grants-2009_07
Patent number
US07557140B2

Reaction notes

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