Ethyl p-methylbenzenesulfonate → 3-Ethyl-2-methyl-1,3-benzothiazol-3-ium;4-methylbenzenesulfonic acid

HRID 345194

Reaktionsgleichung

Reaktionsgleichung von HRID 345194
[CH3:1][C:2]1[S:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.[C:11]1([CH3:23])[CH:16]=[CH:15][C:14]([S:17]([O:20]CC)(=[O:19])=[O:18])=[CH:13][CH:12]=1>CC(C)=O>[CH2:11]([N+:6]1[C:5]2[CH:7]=[CH:8][CH:9]=[CH:10][C:4]=2[S:3][C:2]=1[CH3:1])[CH3:12].[CH3:23][C:11]1[CH:16]=[CH:15][C:14]([S:17]([OH:20])(=[O:19])=[O:18])=[CH:13][CH:12]=1

Komponenten

4

Edukt 2

HCID 6638Ethyl p-methylbenzenesulfonateHCID 84462-Methylbenzothiazole

Produkt 1

HCID 867451383-Ethyl-2-methyl-1,3-benzothiazol-3-ium;4-methylbenzenesulfonic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Reaktionsbedingungen

Temperatur
150 °C

Versuchsvorschrift

2-Methylbenzothiazole (300 pbw) and ethyl p-toluenesulfonate (440 pbw) are heated with stirring to 150° C., the temperature rising to about 200° C. due to the exothermic reaction. After 10 minutes, the mixture is poured into 2000 pbw of acetone, and the product that precipitates is removed by filtration with suction, washed with acetone and dried over phosphorous pentoxide.

Aufarbeitung

  1. customthe temperature rising to about 200° C. due to the exothermic reaction
  2. customthe product that precipitates
  3. customis removed by filtration with suction
  4. washwashed with acetone
  5. dry with materialdried over phosphorous pentoxide

Quellen und Nachweise

ORD-Eintrag
ord-4867702cf6fc48bbbe263506b736a6af
Quelldatensatz
uspto-grants-1991_10
Patentnummer
US05055579

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