Preparation of dithiolium compounds

Details Preparation of dithiolium compounds Preparation of dithiolium compounds

1974-05-20

1976-05-25

Randolph, John D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252395, C07D33904

Patent

active

039593134

ABSTRACT:
This invention relates to the oxidation of sterically hindered 1,2-dithiole-3-thiones with nitric acid to form the corresponding 1,2-dithiolium compounds. For example, when 4-neopentyl-5-tert-butyl-1,2-dithiole-3-thione is oxidized with nitric acid, 4-neopentyl 5-tert-butyl 1,2-dithiolium hydrogen sulfate is formed. When non-sterically hindered 1,2-dithiole-3-thiones are oxidized with nitric acid, decomposition rather than dithiolium formation occurs.

REFERENCES:
patent: 3186995 (1965-06-01), Klingsberg
Klingsberg, et al., C.A. 57: pp. 16791-16792, (1962).
Klingsberg, J.A.C.S. 83: No. 13, pp. 2934-2937, (1961).
Gaudin et al., Compt. Rend., Vol. 224, pp. 557 to 578 (1947).
Breslow et al., Multi-Sulfur and Sulfur and Oxygen Five- and Six-Membered Heterocycles, Part One, pp. 385 and 397-398, Interscience Publishers, John Wiley and Sons, (1966).

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