N4-Acetylsulfanilamide → HCID 178464663, Verbindung

HRID 1484432

Reaktionsgleichung

Reaktionsgleichung von HRID 1484432
CS[C:3]([N:7]1[N:11]=[CH:10][C:9]2([CH2:15][CH2:14][CH2:13][CH2:12]2)[CH2:8]1)=[N:4][CH2:5][CH3:6].[C:16]([NH:19][C:20]1[CH:25]=[CH:24][C:23]([S:26]([NH2:29])(=[O:28])=[O:27])=[CH:22][CH:21]=1)(=[O:18])[CH3:17]>C(#N)C>[CH2:8]1[C:9]2([CH2:12][CH2:13][CH2:14][CH2:15]2)[CH:10]=[N:11][N:7]1[C:3](=[N:29][S:26]([C:23]1[CH:22]=[CH:21][C:20]([NH:19][C:16](=[O:18])[CH3:17])=[CH:25][CH:24]=1)(=[O:27])=[O:28])[NH:4][CH2:5][CH3:6]

Komponenten

4

Edukt 2

HCID 8482N4-AcetylsulfanilamideHCID 53354231HCID 53354231, Verbindung

Produkt 1

HCID 178464663HCID 178464663, VerbindungAusbeute 87 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

157 mg (1 mol equiv.) N-Ethyl-2,3-diaza-spiro[4.4]non-3-ene-2-carboximidothioic acid methyl ester and 157 mg (1.05 mol equiv.) 4-acetamidobenzenesulfonamide were taken up in 5 mL acetonitrile. The reaction mixture was refluxed overnight under magnetic stirring and volatiles were removed in vacuo. The residue was taken up in ethyl acetate and extracted with 2N NaOH. The organic layer was dried over Na2SO4, filtered and evaporated to dryness. Purification by flash chromatography on silica gel (ethyl acetate) afforded 236 mg (87%) of N-(4-{[(2,3-diaza-spiro[4.4]non-3-en-2-yl)-ethylamino-methylene]-sulfamoyl}-phenyl)-acetamide. 1H NMR (400 MHz, CDCl3) δ 1.14 (t, J=7.2 Hz, 3H), 1.62-1.83 (m, 8H), 2.20 (s, 3H), 3.43-3.51 (m, 2H), 3.80 (s, 2H), 6.80 (s, 1H), 6.87 (br.s., 1H), 7.56 (d, J=8.8 Hz, 2H), 7.77 (br.s., 1H), 7.83 (d, J=8.8 Hz, 2H).

Aufarbeitung

  1. temperatureThe reaction mixture was refluxed overnight
  2. customvolatiles were removed in vacuo
  3. extractionextracted with 2N NaOH
  4. dry with materialThe organic layer was dried over Na2SO4
  5. filtrationfiltered
  6. customevaporated to dryness
  7. customPurification by flash chromatography on silica gel (ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-95d9982116f6444e8397f412f3ff2ef6
Quelldatensatz
uspto-grants-2016_08
Patentnummer
US09422244B2

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