New pyrazolium alkyl sulfate useful as solvents for chemical reactions, and heat carrier

Pyrazolium Alkylsulfate

  • Inventors:
  • Assignees: Basf Ag
  • Publication Date: December 21, 2006
  • Publication Number: DE-102005028533-A1

Abstract

Pyrazolium alkyl sulfate is new. Pyrazolium alkyl sulfate of formula (I) is new. R1>H, 1-6C alkyl or phenyl, substituted by halo or 1-3 groups of 1-4C-(halo)alkyl or 1-4C-(halo)alkoxy; R2>H or 1-6C-alkyl; R3>-R5>H, 1-6C-(halo)alkyl or 1-6C-alkoxy; and R6>1-6C-alkyl. Independent claims are included for the preparations of (I). [Image].
Die vorliegende Erfindung betrifft Pyrazolium Alkylsulfate der Formel I, wobei R 1 Wasserstoff, Alkyl oder ggf. substituiertes Phenyl, R 2 Wasserstoff oder Alkyl, R 3 , R 4 , R 5 Wasserstoff, Alkyl, Halogenalkyl oder Alkoxy, R 6 Alkyl bedeuten. Weiterhin betrifft die vorliegende Erfindung Verfahren zur Herstellung der Pyrazolium Akylsulfate der Formel I und ihre Verwendung als Lösungsmittel und Wärmeträger.

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