Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1986-01-21
1987-05-19
Brust, Joseph P.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07C11700
Patent
active
046666311
ABSTRACT:
The invention relates to a process for the preparation of an azidosulphonylbenzoic acid which comprises reacting a water-soluble salt of a chlorosulphonylbenzoic acid with hydrazine (N.sub.2 H.sub.4) in an aqueous medium, reacting the obtained hydrazinosulphonylbenzoic acid salt with nitrous acid in the same aqueous medium, acidifying the resulting aqueous solution comprising the azidosulphonylbenzoic acid salt, to precipitate the azidosulphonylbenzoic acid and separating the azidosulphonylbenzoic acid. The process is a one-pot process, which differs from a known process in that the intermediate, being the hydrazinosulphonylbenzoic acid salt, is not isolated.
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Patai, (editor); "The Chemistry of the Azido Group", (1971), p. 175; Interscience Pub., N.Y.-London.
Bielinski Peter A.
Brust Joseph P.
Shell Oil Company
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