Process for the preparation of naphthalenesulphonyl chloride

Details Process for the preparation of naphthalenesulphonyl chloride Process for the preparation of naphthalenesulphonyl chloride

1980-06-26

1982-07-13

Gerstl, Robert

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14330

Patent

active

043393969

ABSTRACT:
In a process for the preparation of a naphthalenesulphonyl chloride by reacting an alkali metal salt or ammonium salt of a naphthalenesulphonic acid with thionyl chloride in the presence of a catalytically active substance the improvement wherein the reaction is carried out in the presence of an optionally substituted pyridine, tertiary aliphatic amine, secondary amidine and/or quaternary ammonium salt.

REFERENCES:
HELVETICA CHIMICA ACTA, Band 52 No. 5, 1959-H. H. Bosshard et al, "Eine Methode zur katalysierten Herstellung von Carbonsaure` und Sulfosaure-chloriden mit Thionylchlorid"-pp. 1653 to 1658 *p.1654*.
SYNTHESIS, Band 1974, A. BARCO et al, "A New Preparation of Sulfonyl Chlorides via Pyridinium Sulfonates"-p. 877.

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