Process for preparing sulfonyl acids

Details Process for preparing sulfonyl acids Process for preparing sulfonyl acids

1990-01-12

1990-10-30

Lone, Werren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260402, 560 11, 562429, C11C 100, C07C31500

Patent

active

049667319

ABSTRACT:
There is disclosed a process for preparing sulfonyl acids from mercaptans in a single reactor. The mercaptan is converted to mercaptide and reacted with a lactone or lactam in an organic solvent which is removed after formation of a thioether containing acid. Water is provided as a solvent for the oxidation of the thioether to the sulfone. Mild conditions and readily available starting materials render the method capable of preparing such acids in large scale amounts.

REFERENCES:
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patent: 4758369 (1988-07-01), Dyroff et al.
patent: 4824591 (1989-04-01), Dyroff et al.
Node et al, JOC (1961), vol. 46, pp. 5163-5172.
S. S. Kukalenko, Zhur., Organicheskoi Khimii, 6, No. 4, (English translation), pp. 680-684, Apr. 1970.
Kresze et al, Jahrg. 94, pp. 2060-2072, Jan. 25, 1961.
"Acetylene and Carbon Monoxide Chemistry", John W. Copenhaver & Maurice H. Bigelow, Copyright (1949), pp. 156-157.
Rapoport et al, JACS 69, pp. 693-694, Oct. 7, 1946.

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