专利号:US-3876689-A 优先权日:1972-08-28 标题:One-step synthesis of alpha, beta-unsaturated sulfonate salts by the reaction of carbon tetrahalides with certain sulfones 发明人:MEYERS CAL Y; HO LAURENCE L 权利人:UNIV SOUTHERN ILLINOIS 摘要:.alpha.,.beta.-Unsaturated sulfonic acid salts are prepared by a one step synthesis involving reaction of a di-primary alkyl sulfone, an arylmethyl primary alkyl sulfone, an .alpha.-halo diprimary alkyl sulfone, or an .alpha.-haloarylmethyl primary alkyl sulfone with a carbon tetrahalide and a strong base. The sulfone substrate is reacted with a carbon tetrahalide represented by the formula CBr.sub.m Cl.sub.n F.sub.p where m and n are integers between 0 and 4 inclusive, p is an integer between 0 and 2 inclusive and m+n+p = 4 in the presence of the strong base to form a geminally .alpha.-dihalogenated intermediate and dihalocarbene. The geminally .beta.-dihalogenated intermediate reacts rapidly in situ with the strong base to form an .alpha.,.beta.-unsaturated sulfonic acid salt and a halide salt. The unsaturated sulfonic acid salt may be acidified to form the corresponding acid or reacted with a halogenating agent to form the corresponding acid halide. .alpha.,.beta.-Unsaturated sulfonic acid salts are useful detergents.
专利号:US-2008176865-A1 优先权日:2005-06-15 标 题:Substituted arylpyrazoles 发明人:BILLEN DENIS; BOYLE JESSICA; CRITCHER DOUGLAS JAMES; GETHIN DAVID MORRIS; HALL KIM THOMAS; KYNE GRAHAM MICHAEL 权利人:PFIZER LTD 摘要:This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
专利号:US-7645786-B2 优先权日:2005-06-15 标题:Substituted arylpyrazoles 发明人:BILLEN DENIS; BOYLE JESSICA; CRITCHER DOUGLAS JAMES; GETHIN DAVID MORRIS; HALL KIM THOMAS; KYNE GRAHAM MICHAEL 权利人:PFIZER 摘要:This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
专利号:US-7825149-B2 优先权日:2006-01-19 标 题 :Substituted imidazoles 发明人:CHUBB NATHAN ANTHONY LOGAN; COX MARK ROGER; DAUVERGNE JEROME SEBASTIEN; EWIN RICHARD ANDREW; LAURET CHRISTELLE 权利人:PFIZER LTD 摘要:This invention relates to a range of alpha substituted 2-benzyl substituted imidazole compounds and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.