Process for desulphurizing organic mercapto and/or disulphide co

Details Process for desulphurizing organic mercapto and/or disulphide co Process for desulphurizing organic mercapto and/or disulphide co

1994-06-07

1995-10-31

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483044, C07D27782, C07D23504

Patent

active

054630681

ABSTRACT:
Organic compounds of reduced sulphur content and sulphur-free organic compounds can be prepared from organic mercapto and/or disulphide compounds in a particularly advantageous manner by hydrogenolytic elimination of hydrogen sulphide if the elimination of hydrogen sulphide is carried out in the presence of an organic solvent by means of an aqueous, non-oxidizing, strong acid and elemental iron, aluminium and/or zinc in the presence of catalytic amounts of nickel and/or cobalt.

REFERENCES:
patent: 2402642 (1946-06-01), Lazier et al.
patent: 2610190 (1952-09-01), Chao et al.
patent: 4977174 (1990-12-01), Stein et al.
"The Action of Raney Nickel on Organic Sulfur Compounds", H. Hauptmann et al, Jun. 3, 1961, pp. 347-404.
Org. Reactions, vol. 12, 1962, Chapter 5, "Desulfurization with Raney Nickel", G. R. Pettit et al, pp. 356-529.
Acta Chem. Scan., vol. 16, No. 4, 1962; "Reduction of 2-mercaptobenzothiazole to benzothiazole", B. Weibull, p. 1052.
The Baker Laboratory of Chemistry at Cornell University, pp. 718-725; "Benzothiazoles. II. Nuclear Chlorination in the Herz Process", A. T. Blomquist et al, Apr. 23, 1947. Journal of Organic Chemistry. vol. 12, pp. 718-725 (1947).

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