STABILIZATION OF HYDROXYLAMINE CONTAINING SOLUTIONS AND METHOD FOR THEIR PREPARATION
申请人:Lee Wai Mun
公开号:US20090112024A1
公开(公告)日:2009-04-30
The invention relates to the use of amidoximes for prevention of or stabilization of hydroxylamine compounds against undesired decomposition.
本发明涉及将酰胺肟用于预防或稳定羟基胺化合物,防止其不受控分解。
NOVEL NITRILE AND AMIDOXIME COMPOUNDS AND METHODS OF PREPARATION
申请人:Lee Wai Mun
公开号:US20090111965A1
公开(公告)日:2009-04-30
The present application relates to semiconductor processing compositions comprising at least one compound containing at least one amidoxime functional group and to methods of using these compositions in semiconductor processing. The present application also describes the preparation of amidoximes for a semiconductor processing composition by (a) mixing a cyanoethylation catalyst, a nucleophile and an alpha-unsaturated nitrile to produce a cyanoethylation product; and (b) converting a cyano group in the cyanoethylation product into an amidoxime functional group.
Transition metal mediated oxidation of hetero atoms in organic molecules coordinated to transition metals
申请人:Wheelock S. Kenneth
公开号:US20070203195A1
公开(公告)日:2007-08-30
The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylthio)-1H-benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.
[EN] TRANSITION METAL MEDIATED OXIDATION OF HETERO ATOMS IN ORGANIC MOLECULES COORDINATED TO TRANSITION METALS<br/>[FR] OXYDATION D'HÉTÉROATOMES ASSOCIÉE À UN MÉTAL DE TRANSITION DANS DES MOLÉCULES ORGANIQUES COORDONNÉES À DES MÉTAUX DE TRANSITION
申请人:PRAKTIKATALYST PHARMA LLC
公开号:WO2009020454A1
公开(公告)日:2009-02-12
The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl) methylthio)-l H- benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl) methyl) methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.
Metal-Organic Framework Catalysts and Their Use in Hydrocarbon Transformation
申请人:Lillerud Karl-Petter
公开号:US20080306315A1
公开(公告)日:2008-12-11
The invention relates to a porous heterogeneous catalyst material comprising frameworks of inorganic cornerstones connected by organic bridges, characterized in that as organic bridges are used ligands having a complexed catalytically active metal. The metals are preferably palladium and platinum. The ligands preferably contain nitrogen donor groups for complexing the catalytically active metal and carboxylate groups connecting to the inorganic cornerstones.