Process for the preparation of sulphinyl derivatives by...

Details Process for the preparation of sulphinyl derivatives by... Process for the preparation of sulphinyl derivatives by...

2006-09-12

2006-09-12

Moore, Patricia L. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07105681

ABSTRACT:
Process for preparing sulfinyl derivatives of Formula 2, useful as inhibitors of gastric acid secretion, comprising the selective oxidation of the corresponding sulfides of formula 1, as represented in the following schemeThe oxidation is performed with hydrogen peroxide in the presence of low amounts of a rhenium compound as catalyst, at a temperature from 0° C. to room temperature.

REFERENCES:
patent: WO 01/21617 (2001-03-01), None
patent: 03/097606 (2003-11-01), None
Huang, R., et al; “Two Routes to Bis(μ-diphenylphosphino)methane Diplatinum Halides Bridged by Sulfur Monoxide”;Organometallics; vol. 18; pp. 5420-5422 (1999).
Vassell, K.A., et al; “Oxidation of Organic Sulfides by Electrophilically-Activated Peroxide: The Catalytic Ability of Methylrhenium Trioxide”;Inorg. Chem.; vol. 33; pp. 5491-5498 (1994).
Adam. W., et al; “Chemoselective Methyltrioxorhenium (VII)-Catalyzed Sulfoxidations with Hydrogen Peroxide”;Tetrehedron; vol. 50, No. 46; pp. 13121-13124 (1994).

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