Hydrochloric Acid → N-(4-(N-(5-(hydroxymethyl)-1,3,4-thiadiazol-2-yl)sulfamoyl)phenyl)acetamide

HRID 1854284Notes

Reaction equation

HRID 1854284 reaction equation
[C:1]([NH:4][C:5]1[CH:10]=[CH:9][C:8]([S:11](Cl)(=[O:13])=[O:12])=[CH:7][CH:6]=1)(=[O:3])[CH3:2].[NH2:15][C:16]1[S:17][C:18]([CH2:21][OH:22])=[N:19][N:20]=1.Cl>N1C=CC=CC=1>[OH:22][CH2:21][C:18]1[S:17][C:16]([NH:15][S:11]([C:8]2[CH:9]=[CH:10][C:5]([NH:4][C:1](=[O:3])[CH3:2])=[CH:6][CH:7]=2)(=[O:13])=[O:12])=[N:20][N:19]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 8481N-Acetylsulfanilyl chlorideHCID 11062424(5-Amino-1,3,4-thiadiazol-2-yl)methanol

Product 1

HCID 53321029N-(4-(N-(5-(hydroxymethyl)-1,3,4-thiadiazol-2-yl)sulfamoyl)phenyl)acetamideYield 82%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a solution of p-acetamidobenzenesulfonyl chloride (510 mg, 2.18 mmol) in pyridine (6 mL) was added 2-amino-5-hydroxymethyl-1,3,4-thiadiazole (260 mg, 1.98 mmol). The reaction mixture was stirred at room temperature for 4.5 h, then 2 M HCl (20 mL) was added to quench the reaction. The mixture was extracted with ethyl acetate (4×50 mL). The organic extracts were washed with water (40 mL), brine (40 mL), dried over Na2SO4, filtered, and concentrated. The residue was purified by chromatography on silica gel (70-230 mesh) eluted with CH2Cl2:methanol 9:1 to give the product as a solid, mp 101-102° C., in 82% yield (533 mg, 1.62 mmol); 1H NMR (300 MHz, DMSO-d6) δ 2.07 (s, 3H), 4.56 (d, 2H, J=5.1 Hz), 6.09 (t, 1H, J=4.8 Hz), 7.73 (m, 4H); 13C NMR (75 MHz, DMSO-d6) δ 24.8, 59.1, 119.3, 127.7, 136.2, 143.5, 161.7, 168.1, 169.6; MS (LCQ, ESI+) Calcd for C11H13N4O4S2 329.0. found 329.1 (M+H)+; HRMS (ESI+, m/z) Calcd for C11H13N4O4S2 329.0378. found 329.0376 (M+H)+.

Workup

  1. customto quench
  2. customthe reaction
  3. extractionThe mixture was extracted with ethyl acetate (4×50 mL)
  4. washThe organic extracts were washed with water (40 mL), brine (40 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by chromatography on silica gel (70-230 mesh)
  9. washeluted with CH2Cl2:methanol 9:1

Sources & evidence

ORD record
ord-0ad84c6289504052a50e5e8d914ceb2e
Source dataset
uspto-grants-2015_02
Patent number
US08962663B2

Reaction notes

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