已经开发了通过插入二氧化硫的铜催化的烯烃与环丁酮肟酯和异羟肟酸的多组分氧磺酰化反应。该反应使用 K 2 S 2 O 5作为二氧化硫替代物,并使用原位生成的胺氧基自由基作为自由基拦截剂,从而以 35-90% 的收率直接制备 β-胺氧基砜。机理研究表明,烷基自由基和氨氧基自由基的自由基-自由基偶联反应可能参与了这种转化。
ANTIMICROBIAL COMPOSITION CONTAINING AN OXIDOREDUCTASE AND AN ENHANCER OF THER N-HYDROXYANILIDE-TYPE
申请人:——
公开号:US20020094331A1
公开(公告)日:2002-07-18
The present invention relates to an enzymatic composition capable of killing or inhibiting microbial cells or micro-organisms, e.g. in laundry, on hard surfaces, in water systems, on skin, on teeth or on mucous membranes. The present invention also relates to the use of said enzymatic composition for preserving food products, cosmetics, paints, coatings, etc.
The present invention relates to variants of a parent laccase. The present invention also relates to polynucleotides encoding the variant laccases and to nucleic acid constructs, vectors, and host cells comprising the polynucleotides, and methods of using the variant enzymes.
A cleaning kit comprising a cleaning agent comprising a supporting substrate and an oxidoreductase mediator. The oxidoreductase-mediator is immobilized on the supporting substrate.
A cleaning agent comprising a supporting substrate with an oxidoreductase enzyme immobilized thereon wherein the oxidoreductase enzyme is selected from oxidoreductase enzymes having an enzyme classification number selected from the group consisting of E.C. 1.1 - 1.10 and E.C. 1.12 - 1.99.
A method for cleaning a surface comprising contacting the surface with a wash liquor, the wash liquor comprising a cleaning composition and an oxidoreductase enzyme immobilised on a supporting substrate.