Sodium Hydroxide → Sodium 2-(2-Propoxyethoxy)-5-nitrobenzenesulfonate

HRID 1156569

Reaktionsgleichung

Reaktionsgleichung von HRID 1156569
Cl[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][C:3]=1[S:11]([O-:14])(=[O:13])=[O:12].[Na+:15].[Si]([O-])([O-])([O-])[O-].[Na+].[Na+].[Na+].[Na+].[OH-].[Na+].[CH2:27]([O:30][CH2:31][CH2:32][OH:33])[CH2:28][CH3:29]>O>[CH2:27]([O:30][CH2:31][CH2:32][O:33][C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][C:3]=1[S:11]([O-:14])(=[O:13])=[O:12])[CH2:28][CH3:29].[Na+:15]

Komponenten

6

Edukt 4

HCID 14798Sodium HydroxideHCID 17756Glycol monopropyl etherHCID 26051Sodium orthosilicateHCID 70350Benzenesulfonic acid, 2-chloro-5-nitro-, sodium salt (1:1)

Produkt 1

HCID 20534989Sodium 2-(2-Propoxyethoxy)-5-nitrobenzenesulfonate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of 26.0 g of sodium 2-chloro-5-nitrobenzenesulfonate and 5.0 g of sodium silicate (Na2O.nSiO2 ; n=about 3) was suspended in 120 ml of 2-propoxyethanol and while stirring the suspension, a solution prepared by dissolving 5.0 g of sodium hydroxide in 5 ml of water was dropwise added thereto at 65° C. over a period of 10 minutes. After the dropwise addition was completed, the resulting mixture was stirred at 65° C. for 3 hours and insoluble products were then removed by suction filtration. On allowing the filtrate to stand, solids precipitated. The solids were removed by filtration and the filtrate was condensed and dried. The addition of 100 ml of ethanol to the residue resulted in the formation of crystals. The crystals were collected by filtration, washed with isopropyl alcohol and dried at 50° C. Yield: 14.1 g.

Aufarbeitung

  1. customa solution prepared
  2. additionwas dropwise added
  3. additionAfter the dropwise addition
  4. stirringthe resulting mixture was stirred at 65° C. for 3 hours
  5. custominsoluble products were then removed by suction filtration
  6. customsolids precipitated
  7. customThe solids were removed by filtration
  8. customcondensed
  9. customdried
  10. additionThe addition of 100 ml of ethanol to the residue
  11. customresulted in the formation of crystals
  12. filtrationThe crystals were collected by filtration
  13. washwashed with isopropyl alcohol
  14. customdried at 50° C

Quellen und Nachweise

ORD-Eintrag
ord-241755ba5aa944c5896e6cf20c721636
Quelldatensatz
uspto-grants-1982_06
Patentnummer
US04336322

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